the genus rebutia 1895â€”1981 - Free

THE GENUS REBUTIA 

1895—1981 

REBUTIA MUSCULA 

No. 2 of a series of illustrated guide books by:- 

Brian Fearn and Leslie Pearcy 

Published by Abbey Brook Cactus Nursery

Published by: Abbey Brook Cactus Nursery, 

Old Hackney Lane, 

Matlock, Derbyshire. 

Copyright © ABCN 1981 

Illustrations: All illustrations are by Brian Fearn 

Printed in Great Britain by: 

Higham Press Ltd., Shirland, Derby., DE5 6BP

A 

THE GENUS REBUTIA 

1895-1981 

An up to date check list of the genus Rebutia 

and related groups including Aylostera, 

Mediolobivia and Digitorebutia together with 

photographs and descriptions of 20 of the 

more notable species. 

No. 2 of a series of illustrated guide books by:- 


Published by ABBEY BROOK CACTUS NURSERY 

1

Contents 

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 

Nomenclature and Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 

Analytical key to the Rebutia Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 

Flowers and floral structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 

Geographical Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 

Distribution maps and locational data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 

Cultivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 

Pests and Diseases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 

Descriptions - arranged in alphabetical order 27 

Check list of Genera, Subgenera and Sections . . . . . . . . . . . . . . . . . . . . . . . . 52 

Check list of Aylostera Speg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 

Check list of Digitorebutia Frič & Kreuzgr. ex Buin.. . . . . . . . . . . . . . . . . . . . 54 

Check list of Mediolobivia Backbg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 

Check list of Genus Rebutia including specific, varietal and name 

combinations which have been used in connection with the genus . . . . . 59 

Friedrich Ritter field numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 

Alfred Lau field numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 

Walter Rausch field numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 

Karel Knize field numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 

Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 

Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 

2

Preface 

‘The Genus Rebutia 1895-1981’ is the second in a planned series of publications 

by Abbey Brook Cactus Nursery. The first booklet ‘50 Choice Mammillarias’ has 

been well received and the 1st edition has sold well and is now out of print. Two 

years have passed since its introduction and we apologise for the delay in the 

production of the 2nd booklet. The original intention was to produce a new booklet 

each year. In the meantime another booklet ‘Lithops’ by Brian Fearn has been 

published by the National Cactus and Succulent Society and so the new booklet is 

really the 3rd that has been produced by Abbey Brook. We are thus still on target. 

There seems to be no end to the publication of new general books on Cacti and 

other Succulent plants but our intention of producing inexpensive booklets with 

detailed information for the serious collector is as relevant now as it was when 

booklet No. 1 was published. 


Matlock 1981 

REBUTIA FLAVISTYLA 

Fig. 1 A superb species discovered by Friedrich Ritter and described in 1978 

(FR756). Beautiful light orange flowers freely produced. 

3

Introduction 

The genus Rebutia is one of the most widely cultivated groups of plants which 

belong to the family Cactaceae. Their ease of cultivation and free flowering nature 

endears them to all cactophiles. They are plants of the Andean mountain chain in 

South America occurring in northern Argentina and Bolivia. One of the reasons for 

their popularity is their ease of cultivation and adaptability to neglect. They do not 

exactly thrive on neglect, but nevertheless they will still produce their beautiful 

flowers in the spring, provided cool, dry conditions have been given during the 

winter months. As these are plants from the high Andes, they have the added ability 

to survive in an unheated greenhouse or porch when winter temperatures could fall 

to well below 0°C (32°F). 

Nearly all the species are small growing plants, rarely needing more than a 3½'' 

pot, with a range of body form from globular to short cylindrical stems. The spination 

is very varied and often very colourful. Some plants have snow white spines, others 

golden yellow. The flowers are often very large for the size of the plant. In the 

majority of cases the flower colours are vivid oranges, reds, yellows and purple but 

occasionally bicoloured flowers are produced. There are also a few white flowered 

species. These plants are of great horticultural value and no collection of cacti is 

complete without some representatives of this genus. 

REBUTIA FUSCA 

Fig. 2 Described by Friednch Ritter in 1977 (FR940). It produces beautiful dark red 

flowers and is probably closely related to R. spegazziniana Backbg. 

4

Nomenclature and Classification 

It is doubtful if two people will ever agree on the taxonomy of the genus Rebutia 

and as a result the nomenclature is a veritable minefield. This genus has suffered 

more than most from the over-enthusiastic naming of new species, revisions, and 

changes in names and status. This has resulted in a bewildering array of possible 

names and combinations of names. To be quite honest, far too many Rebutia species 

have been described because of the demand and commercial pressures. 

Consequently there is considerable confusion in this genus in trying to establish 

clear relationships between the many taxa. The result of all this activity has been an 

unwarranted cluttering of the synonymy of the group. Over 800 possible names and 

combinations have been found in a search of the literature and we are sure that there 

are many more that we have not found. One really begins to wonder when Rebutia 

beryllioides has been described as a species, as a variety of 2 different species, a 

subspecies and finally as a form of a third species. Is it any wonder that professional 

taxonomists rarely work on a group of plants that are of horticultural value? With 

apologies to the late Professor C. D. Darlington the following misquotation springs to 

mind ‘cactus taxonomy is the pursuit of the impossible by the incompetent’. 

We believe that the main cause of this confusion is that the genus Rebutia s. l. is in 

an active state of evolution. This possibility does not appear to have been grasped by 

the many individuals who have worked on the genus. It would account for the fact that 

although on paper there appear to be 4 main sections which can further be 

subdivided into 8 or more subsections, there are nevertheless some plants which 

cross the boundaries, having characteristics which are intermediate between two or 

more sections or subsections. The knowledge of the existence of these plants is 

largely due to the field work of Friedrich Ritter who has found and introduced a large 

number of new plants, some of which have intermediate characters. This makes the 

reduction from a multigeneric group to a single genus desirable. A further 

complication is the fact that many species are self fertile and inbreeding, so that the 

occurrence of local races and inbred lines is highly likely. 

The activities in the field by Ritter, Rausch, Lau, Knize, Vasques and others have 

all helped in the proliferation of names. Although not all are to blame for the 

subsequent naming of their introductions, they have all collected in the same areas, 

often following in each others footsteps. The consequence of this has been the 

introduction of many ‘new’ species with the great possibility that there has been 

considerable duplication. Every hilltop or slope seems to be inhabited by yet 

another ‘different’ species which has been described at the earliest opportunity. 

Some of these plants have never been validly described but have been distributed 

with field numbers and/or tentative names. What has made this situation worse has 

been the careless subsequent propagation of some of this material. As a result there 

is a distinct possibility that the plants when distributed are frequently wrongly 

identified or wrongly numbered which renders them scientifically worthless. 

It is with all this in mind that we have had a long hard cold look at the group as a 

whole and have come to certain conclusions which represent our own current 

thoughts on the taxonomy of the genus. It is not our intention to further clutter up the 

synonymy, and so in the main we use the original scheme proposed by Bertrand in 

1951 together with a number of refinements. We accept the view of Donald (1975) 

that Sulcorebutia together with Weingartia have evolved from a separate 

evolutionary line and are thus excluded from Rebutia. 

5

aran… -> 

arran… 

In proposing the following arrangement we realise that whatever scheme we 

propose it will not be universally accepted. We have not slavishly followed any one 

particular system but have attempted to amalgamate the best of a number of different 

arrangements. One of the criteria we have used is the breeding system, i.e. whether a 

species is self sterile or self fertile. This neatly divides the Section IV Rebutia into two 

workable subsections. It also divides the large Backeberg genus Mediolobivia into 

two distinct sections, Section II Mediolobivia and Section III Digitorebutia. There will 

always be a problem with those plants which bridge the gap between the different 

sections (being neither wholly self fertile, nor wholly self sterile), but we believe that 

ours is the most workable scheme to date. 

The following is an attempt at producing a description for the whole genus and is 

based on Buxbaum (1958). 

Rebutia K. Sch. emend Buining & Donald. 

Dwarf, globular or slightly cylindrical plants usually making offshoots from the base. 

Tubercles often distinct, spirally arranged and sometimes formed into distinct ribs. 

Spines very variable in length and colour; sometimes short, stiff and bristle-like but 

often long and flexuous. Flowers always produced from old areoles, usually 

appearing crowded at the base and very large in relation to the size of the plant. The 

flowers are brilliantly coloured, red, yellow, purple and occasionally white, 

campanulate or funnel-shaped. The receptacular scales are sometimes naked but in 

others with copious hairs and bristles. Stamens are produced from the funnel part of 

the flower never from a ring in the throat. Occasionally the style is united to the 

receptacle wall. The fruit is a small capsule which opens by a circular split so that the 

lower half which remains on the plant is like a shallow bowl in which some of the 

seeds remain. Seeds small, black and shining but also dull and earth coloured in 

some species. 

Classification of the genus Rebutia 

Rebutia K. Sch. emend. Buining & Donald Type species Rebutia minuscula K. Sch. 

Section I Aylostera (type Rebutia deminuta (Web.) Br. & R.) 

Section II Mediolobivia (type Rebutia aureiflora Backbg.) 

Subsection I Setirebutiae 

Subsection II Cylindrorebutiae 

Section III Digitorebutia (type Rebutia pygmaea (R. E. Fries) Br. & R.) 

Subsection I Pygmaeae 

Subsection II Euanthemae 

Section IV Rebutia (type Rebutia minuscula K. Sch.) 

Subsection I Rebutiae 

Subsection II Mediorebutiae 

Lists of the species which belong to a particular Section or Subsection, together with 

distribution maps and locational data, are given in the chapter devoted to 

geographical distribution. 

6

companulate -> 

campanulate 

Analytical key to the Rebutia Sections 

For reasons which have been explained, this key will not separate those species 

which bridge the gap between the different sections i.e. those species with 

intermediate characters. It should nevertheless help to delimit the majority of 

species. It is based on a key published by Krainz (1967) and amended by B. Fearn. 

A Body globular or cylindrical with the tubercles arranged on distinct ribs, 

which may be vertical or spirally arranged. Body often suffused with 

amethyst particularly during the winter months. 

B Body cylindrical, flowers broad funnel-shaped to campanulate. Flowers 

self sterile. Section II Mediolobivia Subsection II Cylindrorebutiae 

BB Body globular or short cylindrical, flowers narrow funnel shaped, 

lower part of receptacle usually fused with the base of style. Flowers self 

fertile. Section III Digitorebutia 

C Body obviously cylindrical, spines less than 5mm long, strongly 

appressed, areoles arranged in vertical rows. 

Section III Digitorebutia Subsection I Pygmaeae 

CC Body globular, spines 5mm. or longer, always slightly erect never 

appressed, areoles arranged spirally, occasionally in vertical rows. 

Section III Digitorebutia Subsection II Euanthemae 

AA Body globular to flattened globular, with indistinct ribs. Body green. Plants 

usually densely spined. 

C Receptacular scales with hairs and bristles, seeds ± earth coloured. 

D Style not fused to the base of the receptacle. 

Section II Mediolobivia Subsection I Setirebutiae 

DD Basal portion of style usually fused with the lower portion of the 

receptacle. Section I Aylostera 

CC Receptacular scales naked (i.e. without hairs and bristles). Seeds black 

and glossy, dome shaped usually with a prominent white basal hylum 

area. Section IV Rebutia 

E Flowers self fertile. Subsection I Rebutiae 

EE Flowers self sterile. Subsection II Mediorebutiae 

It is beyond the scope of this booklet to include a workable species key. 

Flowers 

All species in the genus Rebutia are day flowering and insect pollinated. Most 

species are self fertile with the notable exception of 2 groups - Section II 

Mediolobivia and Section IV Subsection II Mediorebutiae. 

In Europe, Rebutias flower in late spring usually during the months of April and 

May. The first species to flower is Rebutia marsoneri which usually flowers at the end 

of February and beginning of March. It is thus one of the heralds of Spring. 

Occasionally it flowers much earlier than this and on one notable occasion a plant of 

this species was in flower at Abbey Brook on Christmas Day morning. The last plants 

to flower are some members of Section I Aylostera such as R. deminuta, R. 

pseudodeminuta and R. fiebrigii. There appears to be a distinct sequence in the 

flowering of these plants. This time sequence may be of great biological significance 

because in habitat it would maintain biological isolation even when the plants were 

growing in close proximity to each other. 

7 

hylam -> 

hylum

In cultivation it is possible to change the flowering times of these plants by the 

extension of cool temperatures. This has the effect of delaying the flowering time until 

late May or June. Flowering time can also be altered by increasing the minimum 

temperature during February thus shortening the winter period. This has the effect of 

making the plants flower in March. 

Although it is possible to alter the timing of flowering, there is one overall 

requirement in the successful cultivation of these plants which appears to determine 

whether the plants actually produce or do not produce flowers. In our experience 

this is the winter rest period. It appears to be essential for the temperature to fall near 

to or below freezing for some considerable time. Having due regard to the high 

altitudes in the Andes of the natural habitats of these plants 1500-4000 metres altitude 

(4900-13,000ft.) it is not really surprising that this is the case. At Abbey Brook we now 

keep all our Rebutia plants in a cold unheated glasshouse during the winter together 

with two other genera Lobivia and Oreocereus. 

The cold requirement may well account for the poor flowering of these plants in 

Southern California and the total lack of flower production in the tropics. We have 

already suggested to our friends in the tropics that these plants should be wrapped in 

newspaper and placed in a refrigerator (not a deep freeze) for some weeks. We 

have not yet received the results of these experiments. 

Floral Structure 

The floral structure of the genus Rebutia has in the past been used to justify 

splitting the single genus Rebutia into a number of separate genera. It is now 

appreciated that such a split cannot be justified on the basis of floral structure alone, 

as it has been observed that there are plants with a floral structure which is 

intermediate between the different sections. 

For example, the genus Aylostera was separated from the rest of Rebutia on the 

observation that the base of the style was fused to the base of the corolla. In other 

groups for example Mediolobivia and Rebutia the style is completely free from the 

base of the corolla. Digitorebutia was an intermediate group in which the style was 

only partially free. It is now recognised that these differences are not exhibited by all 

the related species of a section and cannot therefore be used to justify the 

maintenance of a number of separate genera. 

Similarly the presence or absence of hairs and bristles in the axils of the 

receptacle scales is again not a good universal character for splitting up the genus. It 

has been found that there are a number of species which bridge the gap between the 

previously recognised generic units. A number of fine illustrations of the floral 

characters of the genus have been published Krainz (1967), and Brederoo (Donald & 

Brederoo, 1978). The drawings in this booklet are by Brian Fearn and have not been 

published previously. 

8

B 

Rebutia senilis f. stuemeri nat. size 

Rebutia minuscula f. grandiflora nat size 

9

Rebutia pygmaea nat. size 

Rebutia marsoneri nat. size 

10

Rebutia einsteinii f. schmiedcheniana nat. size 

Rebutia muscula nat. size 

11

REBUTIA CHRYSACANTHA 

Fig. 3 Beautiful large flowered species closely related to R. senilis. 

12

occuring -> 

occurring 

The Geographical Distribution of the genus Rebutia 

The geographical distribution of the genus Rebutia occurs in North West 

Argentina and the southern provinces of Bolivia on the eastern side of the Andes. The 

altitude varies between 1500-4000 metres (4,900-13,000ft. above sea level). The 

genus can be split into four main taxonomic sections. Although these sections do not 

fall into distinct geographical groupings, certain trends can be detected. Map No. 1 

shows the important place names and country boundaries and Maps 2-4 the 

geographical distribution of Rebutia species. 

Section I Aylostera (Map No. 4) 

This section has a very extensive distribution in Argentina and Bolivia. It occurs 

from Tuome Province in the south, throughout Salta and Jujuy provinces in Argentina 

to Tarija, Potosi, Chuquisaca and Santa Cruz Departments of Bolivia. 

a) Rebutia deminuta Weber and allied species. Rebutia deminuta is the most 

southerly member of this group coming from Trancas, Tucuman province 

Argentina. The closely related form Rebutia pseudominuscula occurs over an 

extensive area from central Salta province through Jujuy province and into 

Tarija. 

b) Rebutia pseudodeminuta Backbg. and allied species. Rebutia pseudodeminuta 

is widely distributed from south Salta to central Tarija and into 

Chuquisaca and Potosi. Many of the recently described ‘species’ of Ritter, 

Rausch and Lau represent geographical forms of R. pseudodeminuta. (e.g. R. 

maxima FR755, R. albiareolata FR761, R. tamboensis FR1142 from Tarija and R. 

nitida FR769 from Chuquisaca.) 

c) Rebutia kupperiana Böd. and allied species. Rebutia kupperiana is restricted in 

habitat to an area around Narvaez in Tarija department Bolivia although several 

other related Ritter ‘species’ belonging to this group have been described as 

coming from south Chuquisaca. (e.g. R. tuberosa Ritt., and R. rubiginosa Ritt.) 

d) Rebutia fiebrigii (Guerke) Br. & R. and allied species. The Rebutia fiebrigii 

complex occurs over an extensive area of southern Bolivia and northern 

Argentina. The main area of distribution occurs from Tarija and Chuquisaca in 

Bolivia to northern Salta in Argentina. There is an outlier of distribution in Santa 

Cruz department where Rebutia ithyacantha (Card.) Diers, R. donaldiana Lau 

and Rowley and R. vallegrandensis Card. occur. Rebutia spinosissima has a 

very extensive distribution from north Salta in Argentina through Tarija and into 

south Chuquisaca in Bolivia. 

Rebutia fiebrigii itself has by far the largest distribution area of any member of 

this group occurring from La Quiaca in Jujuy province in Argentina to central 

Chuquisaca in Bolivia. 

e) Rebutia spegazziniana Backbg. and allied species. This species is found in 

Salta province near to the border with Bolivia and into Tarija department from 

Padcaya to Tarija. The closely related ‘species’ R. fusca Ritt., R. vulpina Ritt., and 

R. tarvitaensis Ritt., are all found in Chuquisaca department, Bolivia. 

f) Rebutia heliosa Rausch. This species has a limited distribution area near 

Narvaez in Tarija department, Bolivia. There are a number of ‘species’ closely 

related to R. heliosa apart from var. cajasensis and var. conderensis, these are R. 

perplexa and R. espinosa. Both of these are found in Tarija near to R. heliosa 

and at Southern Cinti R. albopectinata occurs. 

13

Section II Mediolobivia 

This series has a very limited distribution occurring only in Argentina in an area 

of north Salta and south Jujuy provinces. 

Subsection I Setirebutiae. Plants in this section all occur near to the Salta - Jujuy 

border around Quebrada del Toro. Rebutia aureiflora var. elegans and related forms 

have the most southerly distribution of this group occurring around Quebrada 

Escoipe. 

Subsection II Cylindrorebutiae. There is probably only a single species which 

belongs in this section - R. einsteinii. The myriad of different names appear to refer to 

geographical variants. These plants have been found in either Salta or Jujuy 

provinces. 

Section in Digitorebutia. (Map No. 2) 

This section has a very extensive distribution from Salta and Jujuy provinces in 

Argentina in the south to the Bolivian departments of Tarija, Chuquisaca, Potosi and 

Oruro in the north. 

There appear to be several separate centres of distribution where a number of 

named species occur in close proximity. It is here suggested that these ‘species’ 

should be subjected to an intensive ecological investigation to determine whether 

these populations are biologically isolated, by pollination vectors and flowering 

times. Admittedly members of this series are all self fertile, but their highly coloured 

flowers would attract pollinating insects. Gene flow between populations would 

occur if the populations which were in close proximity flowered at the same time. 

We have determined that there are 5 separate areas of distribution for the 

majority of members of this Section. 

a) Argentina - Bolivia border areas, Jujuy province. 

e.g. R. eos Rausch, R. costata Werd., R. pygmaea (R. E. Fries) Br. & R. 

b) Mendez province, Tarija, Bolivia. 

e.g. R. brunneoradicata Ritt., R. colorea Ritt. 

c) Camargo - Culpina region, Cinti province, Chuquisaca, Bolivia, 

e.g. R. diersiana Rausch, R. mixta Ritt. 

d) South Chichas province, Potosi, Bolivia, 

e.g. R. iridescens Ritt., R. rosalbiflora Ritt. 

e) Environs of Potosi City, Potosi, Bolivia. 

e.g. R. pygmaea, R. costata f. pilifera Buin. & Donald. 

The species found in Oruro also belong here. The proliferation of names which 

is particularly true of section III, are at best, geographical variants of very few 

species. 

Section IV Rebutia (Map No. 3) 

Subsection I Rebutiae. 

This subsection contains three species complexes. These are R. minuscula, R. 

senilis and R. xanthocarpa. The R. minuscula complex includes R. grandiflora 

Backbg., R. violaciflora Backbg. and R. kariusiana. The group is totally Argentinian in 

distribution ranging from the north Tucuman to Salta and Jujuy provinces. The area is 

bounded by Tucuman City, Quebrada Escoipe, Cachipampa and Quebrada del 

Toro. R. minuscula occurs throughout this region apparently remaining 

14

morphologically constant until reaching the northern limit of its distribution where it 

appears to intergrade with R. violaciflora. 

Subsection II Mediorebutiae. 

This subsection contains two species complexes. These are R. wessneriana and 

R. marsoneri. It appears that this subsection has a much wider distribution than 

Subsection I Rebutiae, ranging from south Salta province in Argentina e.g. R. 

wessneriana Bew. to Huari-Huari, Potosi department, Bolivia e.g. R. binnewaldiana 

W. Heinr. and R. fiebigiana W. Heinr. Some doubt has been raised as to the 

authenticity of the last two species. The habitat data may be incorrect. Seed 

distributed from these habitats has produced plants that resemble species of Series I 

Aylostera (Donald, Ashingtonia 2 67). If this is correct then the distribution is 

restricted to Jujuy and Salta provinces of Argentina and into Tarija department 

Bolivia where R. wessneriana is also found. The R. marsoneri complex is distributed 

throughout northern Jujuy province, Argentina. 

Distribution maps and locational data 

The following is a list of the species together with locational data which have 

been used in preparing the distribution maps. It is interesting to note that often 

species belonging to the same Rebutia section (i.e. closely related) have often been 

collected at the same place. The altitude at the different sites may vary, but the vital 

information on genetic isolation is not available. Without this, together with ecological 

and experimental taxonomic data the suspicion is that these different ‘species’ are 

identical merely representing the range of species variation. For example the 

following species numbers 18, 20, 22, 24, 40, 41, 44, 45 have the same location - Mal 

Paso, Sth. Chichas, Potosi, Bolivia. Also species numbers 4, 12, 16, 26, 36, 46 occur at - 

Camargo - Culpina, Chuquisaca, Bolivia. 

Rebutia Section III Digitorebutia (See Map No. 2) 

1 brachyantha (Wessn.) Buin. & Donald. Tarija, Tarija, Bolivia. 

2 brunescens Rausch. Huari-Huari, Potosi, Bolivia. 

3 brunneoradicata Ritter. San Antonio, Mendez, Tarija, Bolivia. 

4 canacruzensis Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

5 carmeniana Rausch. Caspala, Jujuy, Argentina. 

6 cincinnata Rausch. Potosi, Potosi, Bolivia. 

7 colorea Ritter. San Antonio, Mendez, Tarija, Bolivia. 

8 costata (Werd.) Krainz. La Quiaca, Jujuy, Argentina. 

9 costata f. eucalyptana (Backbg.) Buin. & Donald. Eucaliptos, La Paz, Bolivia. 

10 costata f. pilifera Buin. & Donald Potosi, Potosi, Bolivia. 

11 densispectinata Ritter nomen nudum. Jucanas, Tarija, Bolivia. 

12 diersiana Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

13 eos Rausch. Tafna, Jujuy, Argentina. 

15 

Quaica -> 

Quiaca

14 euanthema (Backbg.) Buin. & Donald. Quebrada de Humahuaca, Jujuy, 

Argentina. 

15 euanthema f. oculata (Werd.) Buin. & Donald. Humahuaca, Jujuy, Argentina. 

16 friedrichiana Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

17 graciliflora Backbg. Chichas, Potosi, Bolivia. 

18 gracilispina Ritter. Mal Paso, Sth. Chichas, Potosi, Bolivia. 

19 hirsutissima Card. Bueto, Villaserrano, Chuquisaca, Bolivia. 

20 iridescens Ritter. Mal Paso, Sth. Chichas, Potosi, Bolivia. 

21 iscayachensis Rausch. Iscayachi, Tarija, Bolivia. 

22 lanosiflora Ritter. Mal Paso, Sth. Chichas, Potosi, Bolivia. 

23 minutissima Ritter. Tarija, Tarija, Bolivia. 

24 mixta Ritter. Mal Paso, Sth. Chichas, Potosi, Bolivia. 

25 mixticolor Ritter. San Antonio, Mendez, Tarija, Bolivia. 

26 mudanensis Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

27 odontopetala Ritter. Cueva, Sth. Cinti, Chuquisaca, Bolivia. 

28 patericalyx Ritter. Cueva, Sth. Cinti, Chuquisaca, Bolivia. 

29 pauciareolata Ritter. San Antonio, Mendez, Tarija, Bolivia. 

30 paucicostata Ritter. San Antonio, Mendez, Tarija, Bolivia. 

31 poecilantha Ritter. North Cinti, Chuquisaca, Bolivia. 

32 potosina Ritter. Potosi, Potosi, Bolivia. 

33 pseudopygmaea Ritter nomen nudum. San Antonio, Mendez, Tarija, Bolivia. 

34 pygmaea (R. E. Fries) Br. & R. Yavi, Jujuy, Argentina., Potosi, Potosi, Bolivia. 

35 pygmaea f. haefneriana (Cullm.) Buin. & Donald. Oruro, Oruro, Bolivia, Iturbe, 

Argentina, Chichas, Potosi, Bolivia. 

36 raulii Rausch Camargo-Culpina, Chuquisaca, Bolivia. 

37 rauschii Zecher. Huari-Huari, Potosi, Bolivia. 

38 ritteri (Wessn.) Buin. & Donald, Iscayachi, Tarija, Bolivia. 

39 ritteri f. nigricans (Wessn.) Buin. & Donald. Quebrada del Toro, Salta, 

Argentina. 

40 rosalbiflora Ritter. Mal Paso, Sth. Chichas Province, Bolivia. 

41 rutiliflora Ritter. Mal Paso, Sth. Chichas Province, Bolivia. 

42 salpingantha Ritter. Villazon, Potosi, Bolivia. 

43 tarvitaensis Ritter. Tarvita, Azurduy, Chuquisaca, Bolivia. 

44 torquata Ritter. Mal Paso, Sth. Chichas Province, Bolivia. 

45 tropaeoliptica Ritter. Mal Paso, Sth. Chichas Province, Bolivia. 

46 violascens Ritter. Camargo, Cinti, Chuquisaca, Bolivia. 

Rebutia Section II Mediolobivia Subsection I Setirebutiae (See Map No. 2) 

55 R. aureiflora Backbg. Quebrada del Toro, Salta, Argentina. 

56 R. aureiflora f. rubelliflora (Backbg.) Buin. & Donald. Quebrada del Toro, 

Salta, Argentina. 

57 R. aureiflora f. duursmaiana (Backbg.) Buin. & Donald. Yacones, Salta, 

Argentina. 

58 R. aureiflora f. boedeckeriana (Backbg.) Buin. & Donald. Nr. Chani Volcano, 

Jujuy, Argentina. 

59 R. aureiflora v. elegans (Backbg.) Buin. & Donald. Quebrada Escoipe, Salta, 

Argentina. 

16 

Chuquisiana -> 

Chuquisaca 

mudadensis -> 

mudanensis 

poelcilantha -> 

poecilantha

Rebutia Section IV Rebutia Subsection I Rebutiae (See Map No. 3) 

60 fabrisii Rausch. Valle Grande, Salta, Argentina. 

61 minuscula K. Sch. Tucuman, Tucuman Prov., Argentina. 

62 minuscula var. grandiflora (Backbg.) Buin. & Donald. Quebrada Escoipe, 


63 minuscula var. violaciflora (Backbg.) Buin. & Donald. Quebrada Escoipe, 


64 margarethae Rausch. Iruya, Santa Victoria, Salta, Argentina. 

65 padcayensis Rausch. Padcaya, Tarija, Bolivia. 

66 senilis Backbg. Quebrada Escoipe, Salta, Argentina. 

67 xanthocarpa Backbg. Quebrada del Toro, Salta, Argentina. 

Rebutia Section IV Rebutia Subsection II Mediorebutiae (See Map No. 3) 

68 binnewaldiana W. Heinr. Huari-Huari, Potosi, Bolivia. 

69 fiebigiana W. Heinr. Huari-Huari, Potosi, Bolivia. 

70 krainziana Kess. Yavi, Jujuy, Argentina. 

71 marsoneri Werd. North Jujuy, Argentina. 

72 marsoneri f. sieperdaiana (Buin.) Buin. & Donald. Salta, Salta, Argentina. 

74 wessneriana Bewg. Quebrada de Humahuaca, Jujuy, Argentina; Salta, 

Salta, Argentina; Tarija, Bolivia and Guachipas, Escoipe, Salta, Argentina. 

Rebutia Section I Aylostera (See Map No. 4) 

76 albiflora Ritter & Buin. Rio Pilaya, North East Tarija, Bolivia. 

77 albipilosa Ritter. Narvaez, Tarija, Bolivia. 

78 albiareolata Ritter. Padcaya, Arce, Tarija, Bolivia. 

79 albopectinata Rausch. Culpina, Chuquisaca, Bolivia. 

80 aureispina Knize nomen nudum. Jucanas, Tarija, Bolivia. 

81 buiningiana Rausch. Nr. Iruya, Salta, Argentina. 

82 camargoensis Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

83 cajasensis Ritter. Tarija, Tarija, Bolivia. 

84 cintiensis Ritter. Camargo, Sth. Cinti, Chuquisaca, Bolivia. 

85 deminuta (Weber.) Br. & R. Trancas, Tucuman, Argentina. 

86 donaldiana Lau & Rowley. Pucara, Vallegrande, Santa Cruz, Bolivia. 

87 fiebrigii (Guerke) Br. & R. Iscayachi, Tarija, Bolivia. 

88 flavistyla Ritter. Tarija, Tarija, Bolivia. 

89 froehlichiana Rausch. Yuquina, Cinti, Chuquisaca, Bolivia. 

90 fulviseta Rausch. Padcaya, Arce, Tarija, Bolivia. 

91 fusca Ritter. Cinti Chuquisaca, Bolivia. 

92 heliosa Rausch. Road to Narvaez, Tarija, Bolivia. 

93 hoffmannii Rausch. Santa Victoria, Salta, Argentina. 

94 huasiensis Rausch. Inca Huasi, Cinti, Chuquisaca, Bolivia. 

95 ithyacantha (Card.) Diers. North Comarapa, Valle Grande, Santa Cruz, Bolivia. 

96 jujuyana Rausch. Quebrada de Humahuaca, Jujuy, Argentina. 

97 jujuyensis Lau. Santa Victoria, Salta, Argentina. 

98 kieslingii Rausch. Caspala, Jujuy, Argentina. 

99 kupperiana Böd. Narvaez, Tarija, Bolivia. 

C 

17 

fabrisi -> 

fabrisii 

sieperdaiana -> 

sieperdaiana 

Humuhuaca -> 

Humahuaca

100 lauii Donald. Cajas Pass, Tarija, Bolivia. 

101 leucanthema Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

102 mamillosa Rausch. Camargo, Chuquisaca, Bolivia. 

103 muscula Ritter & Thiele. Narvaez, Tarija, Bolivia. 

104 napina Ritter. South Cinti, Bolivia. 

105 nitida Ritter. Tarvita Azurduy, Chuquisaca, Bolivia. 

106 nogalensis Ritter. Tarvita Azurduy, Chuquisaca, Bolivia. 

107 pseudodeminuta Backbg. South Salta, Argentina - to - Chuquisaca, Bolivia. 

108 deminuta f. pseudominuscula (Speg.) Buin. & Donald. Cachi, Salta, Argentina. 

109 pulchella Rausch. North of Padilla, Chuquisaca, Bolivia. 

110 pulvinosa Ritter & Buin. Narvaez, Tarija, Bolivia. 

111 robustispina Ritter. Tarija, Tarija, Bolivia. 

112 rubiginosa Ritter. South Cinti, Chuquisaca, Bolivia. 

113 schatzliana Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

114 spegazziniana Backbg. Salta, Victoria - to - Tarija, Bolivia. 

115 sphaerica Ritter. Tarija, Tarija, Bolivia. 

116 spinosissima Backbg. Santa Victoria, Salta, Argentina. 

117 supthutiana Rausch. Camargo-Culpina, Chuquisaca, Bolivia. 

119 tarijensis Rausch. Tarija, Tarija, Bolivia. 

120 tarvitaensis Ritter. Tarvita, Azurduy, Chuquisaca, Bolivia. 

121 tuberosa Ritter. South Cinti, Chuquisaca, Bolivia. 

122 vallegrandensis Card. Candellaria, Valle Grande, Santa Cruz, Bolivia. 

123 vulpina Ritter. Cinti, Chuquisaca, Bolivia. 

124 zecheri Rausch. Iscayachi, Tarija, Bolivia. 

Rebutia Section II Mediolobivia Subsection II Cylindrorebutiae (See Map No. 4) 

125 einsteinii Frič ex Backbg. La Quiaca, Jujuy, Argentina. 

127 einsteinii var. gonjianii (Kies.) Donald. Tilcara, Jujuy, Argentina. 

128 einsteinii f. schmiedcheniana (Kohl.) Buin. & Donald. Chani Volcano, Jujuy, 

Argentina. 

129 einsteinii f. rubriviridis (Frič & Kreuzgr. ex. Backbg.) Donald. 

Quebrada del Toro, Salta, Argentina. 

130 einsteinii f. conoidea (Wessn.) Buin. & Donald. Cham Volcano, Jujuy, Argentina. 

18 

pulchell -> 

pulchella

Cultivation 

Cultivation of the majority of species should present no real problems. In the 

growing season (March-October) they need a considerable amount of water. This 

may mean watering 2 or 3 times a week in hot sunny weather but normally once a 

week should be sufficient. Try not to get the soil soaking wet which leads to bloated 

plants which are very susceptible to soft rot. Wet soil also encourages Sciara Fly 

which can also lead to loss of plants. In the winter (October-March) the watering 

requirements are completely different as the plants are not growing. For successful 

flower production it appears to be essential for the temperature to fall near to or 

below freezing point for some considerable time. During this period the plants must 

be kept absolutely dry and you will then be rewarded by the production in early 

spring of the superb, brightly coloured flowers produced by all members of this 

genus. 

All Rebutia species need plenty of light and a good sunny position is essential. 

Although these plants can be successfully grown on the window sill, a greenhouse or 

conservatory is a better place especially if you wish the plants to flower. We have 

found from long experience that plants that are watered and kept warm 7°C (45°F) or 

above in the winter are very shy flowering. 

We can recommend the following compost although Rebutias can be grown 

successfully in virtually any mixture:- 3 or 4 parts of Fisons Levington Potting 

Compost and 1 part of coarse lime-free sand. 

We grow the majority of our plants in this mixture. It has also been found 

beneficial to feed the plants during the growing season with a low nitrogen, high 

potash fertiliser such as Fisons Tomorite. We normally feed the plants 3 times during 

the growing season i.e. once every 6 weeks using the recommended strength 

fertilizer. Repotting is only necessary when the plants have outgrown the container 

they are growing in. Repotting is usually done at the beginning of the growing 

season. If regular feeding is given as recommended, repotting once in 2 or 3 years 

may be all that is necessary, particularly with the slower growing species. 

Vegetative Propagation. Rebutias can be propagated by removing and rooting 

offsets but it is not a recommended practice as the plants are so easy to grow from 

seed. R. albiflora is the only real exception and this species is usually propagated by 

rooting offsets as seed is rarely available. Grafting is also sometimes used to 

propagate the slower growing species such as R. aureiflora, R. einsteinii and R. 

heliosa but it is not really necessary as the plants grow well on their own roots. 

Growing from seed. Rebutias are best propagated from seed. If you are collecting 

your own seed it is best to collect the fruits when they are fully ripe at the end of the 

growing season. Many species produce copious quantities of seed, others have only 

a few seeds in each capsule. Carefully separate the seeds from any adhering capsule 

wall or debris. They can then be stored or sown immediately. 

To be successful you must try to imitate the conditions in which the plants grow 

naturally. Cacti are nearly always found under scrub or small bushes, on rocky slopes 

or on level ground where the soil is porous. This is because:- 

(1) The slope and porous soil provide adequate drainage. 

(2) The scrub provides shade for the seedlings and young plants. 

(3) The rocks radiate warmth at night and the crevices between them trap 

pockets of humid air. 

23

When to sow. If you do not have a heated propagator, the best time to sow is in 

Spring. i.e. from March until the end of May. Do not sow later than this as the 

seedlings will not be large enough to withstand the following winter. 

If you have a heated propagator or a warm window sill (Do not use the airing 

cupboard) you can sow at any time of the year, but January and February are the best 

months. 

Compost. We can recommend the following composts. 

Either: 

(1) Equal parts of Fisons Levington potting compost and coarse lime-free sand. 

or (2) One part John Innes No. 1 or 2 and ¼ part lime-free sand. 

Sowing. Fill the seed trays or shallow pots to within ¼'' of the top with compost and 

level the surface, removing any large lumps. Water with a watering can fitted with a 

fine hose. Scatter the seed thinly on the surface of the damp compost. Seeds can be 

spaced out and lightly pressed level with the surface using a pencil. Cactus seed 

need light before they will germinate, so do not cover the seeds with compost and do 

not put the containers in a dark cupboard. 

Temperature. Temperatures of 12-22°C (55-70°F) are best for germination. Once 

the seedlings are 2-3 weeks old normal growing temperatures are adequate. 

Germination. The percentage of seeds that germinate depends on the species, age 

of the seed and temperature, but there should be signs of germination within 2-3 

weeks. A few seeds may be slow to germinate, and seedlings may not appear until 

2-3 months after sowing. 

Watering. If possible, water with a fine mist spray, or place the container in a 

saucer and water from below. Never let the compost dry out, particularly before 

germination has taken place, or the germinating seeds will be killed. Conversely, do 

not allow the compost to become waterlogged either, else the seeds will rot. After 

germination keep soil moist - not too wet, not too dry. During the first winter the 

seedlings can be kept completely dry in a minimum temperature of 2°C (35°F). 

Care of the young seedlings. Keep the container in an airy place to prevent 

‘damping off. Shade the seedlings with a single thickness of tissue or newspaper for 

the first two months, then avoid direct sunlight for a further 6 months. After that time 

treat as adult plants. Try to ensure the seedlings remain a healthy deep green (or 

occasionally brownish) colour - a bright red colour indicates that too much light has 

been given, thin spindly pale green seedlings results from too little light. 

Transplanting. Do not transplant seedlings until they begin to touch one another in 

the container - this will depend on the rate of growth of individual species. If in doubt, 

leave the seedlings in the same container for 1 year, and do not transplant until the 

spring of the second year. They will not come to any harm even if they look 

overcrowded. 

Detailed germination studies on Rebutia xanthocarpa f. salmonea have been 

made Fearn (1974). It was found that no seed germinated below 9°C or above 26°C It 

was found that this species when compared with other species from South America 

e.g. Gymnocalycium spegazzinii, Frailea pumila and Helianthocereus pasacana has 

a very restricted temperature range. At least 50% germination occurred between 

11∙5°C and 22∙8°C (52°F - 70°F) a range of 11∙3°C. 

24 

spegazinnii -> 

spegazzinii

Fig. 4 The germination of R. xanthocarpa f. salmonea has been plotted on a day to 

day basis and the figures on the graph indicate the number of days 

incubated. 

Fig. 5 The curves obtained for H. pasacana and R. xanthocarpa f. salmonea are 

shown. On successive days the maximum and minimum temperatures at 

which 50% of maximum germination was obtained. The resulting U shaped 

curves reflect the temperature span over which 50% germination occurred, 

the rate of germination at different temperatures and the position of 

maximum and minimum temperature at which 50% of maximum germination 

was reached. 

D 

25

Pests and Diseases 

Mealy Bugs are the most common pests of cacti. They look a bit like tiny wood lice but 

with a white waxy coat. They usually aggregate in areas which are not affected by 

overhead watering, e.g. in the axis of the tubercles and around the base of the plant. 

Spraying with Malathion or a combination with Dimethoate will eradicate them. 

Root Mealy Bugs usually remain unseen until the plants are repotted. They occur as 

white woolly colonies which feed on the roots. Watering with a systemic insecticide 

such as Dimethoate should eradicate them. Repeat the dose after seven or ten days. 

Red Spider Mite can be a serious pest. Its presence may remain undetected until the 

plants have become severely disfigured with a reddish-brown area on the 

epidermis. It is a very tiny reddish creature just visible to the naked eye. Water or 

spray the plants with a contact or systemic insecticide Repeat the dose after ten 

days. 

Sciara Fly is a relative newcomer as far as pests of Cacti are concerned. The first 

warning may be the presence of a few tiny black flies near the plants. The real pest is 

the larvae which lives just under the soil surface and can cause damage and rot the 

base of the plants. Total collapse of the plant may result. Watering with a systemic 

insecticide should eradicate the larvae. 

Aphids are not an important pest in the cactus collection. They occasionally occur on 

flower buds and on young growth and any standard insecticide should deal with 

them. 

REBUTIA XANTHOCARPA f. VIOLACIFLORA 

A charming plant with delicate lilac-rose coloured flowers 

26 

visable -> 

visible

Rebutia Descriptions 

We have selected the following 20 species as representatives of the range of 

variation exhibited by the genus Rebutia. It includes plants from all the Sections and 

many of them are old favourites having been in cultivation for some considerable 

time e.g. R. kupperiana, and R. minuscula. Other species which have been included 

such as R. albiflora, R. muscula and R. heliosa, are among the best of recent 

introductions. 

REBUTIA ALBIFLORA 

Fig. 6 A very distinctive and beautiful species with white flowers. 

27

REBUTIA ALBIFLORA 

Rebutia albiflora Ritt. & Buin. Taxon (1963) 12 29 

Synonyms Aylostera albiflora (Ritt. & Buin.) Backbg. 

Classification Section I Aylostera 

Body Individual heads up to 25mm. in diameter but usually much smaller 

than this. Plants freely offsetting from the base and eventually 

forming large clumps. Epidermis grey-green. 

Areoles tiny, more or less circular, pure white 

Spines differentiated into approximately 15 radials and 5 centrals, up to 

5mm. long, straight and glassy white. 

Flowers inner petals white, outer petals often with a pronounced pink 

mid-line, 25mm. wide and 30mm. long. The tube is pink and has 

short white bristles at the base. 

Fruit small, 3-4mm. in diameter, reddish-pink and contains few seeds. 

Seed small, matt black. 

Type locality Rio Pilaya, N.E. Tarija, Bolivia. Map 4, No. 76. 

Discovered by Friedrich Ritter (FR766a) 

Notes A very distinctive and beautiful species. It is unusual in both habitat 

and flower for a Rebutia species. The free clumping nature of this 

species produces beautiful small mounds of white heads. The 

white flowers are small, but the unusual colour makes the plant a 

real gem. 

The majority of plants in cultivation appear to be self sterile and 

from the apparent lack of different clones, seed is rare. We believe 

that most of the plants in cultivation have been propagated 

vegetatively from the clone originally introduced by H. Winter of 

West Germany in the late 1950’s. 

Recently, an interesting hybrid has been produced with R. heliosa. 

The plants have the body form of R. heliosa but with white flowers. 

Kakt. u. a. Sukk. (1978) 29 184. 

REBUTIA ALBIPILOSA 

Rebutia albipilosa Ritter Taxon (1963) 12 29 

Synonyms Aylostera albipilosa (Ritt.) Backbg. 

Classification Section I Aylostera. 

Body up to 40mm. in diameter becoming caespitose with age. Epidermis 

dark green. 

Areoles elliptical, with white wool, raised on short tubercles and arranged 

on ribs. 

Spines c. 20 in number, strongly differentiated in centrals and radials, 

mostly 7-10mm. long. However, a few spines become extremely 

long especially at the base of the plant. These spines are often 

30-40mm. long. All spines are white, the longest ones having dark 

brown tips. 

28

Flowers 45mm. long and 30mm. wide, petals orange-red in colour often with 

a darker red midstripe. Tube and ovary with hairs and bristles. 

Filaments and style white with a 6 lobed cream coloured stigma. 

Self fertile. 

Fruit 5mm. in diameter, brownish-green and covered with hair and 

bristles. 

Seeds dome shaped, dull black. 

Type locality Narvaez, Department Tarcia, Bolivia. Map 4, No. 77. 

Notes This is another of the Rebutia species found by Friedrich Ritter 

(FR754) in the early 1960’s. It is a very variable species particularly 

with reference to the length of the spines. Several other ‘species’ 

are probably referable here for example R. vulpina (FR939) and R. 

robustispina (FR763). The original plant depicted by Ritter with 

very long and dense white spines appears to be an extreme form. 

Nobody has yet recollected or seen another comparable plant. 

Donald (Ashingtonia 2 180) has speculated that Ritter’s R. flavistyla 

(FR756) is the true R. albipilosa. If this is correct and confirmed by 

Ritter it calls into question a whole series of descriptions and 

relationships. It is interesting to note that Ritter found and 

described both species, (see colour plate and fig. 1.). 

REBUTIA AUREIFLORA 

Fig. 7 An uncommon, slow growing species with very large flowers. 

29

REBUTIA AUREIFLORA 

Rebutia aureiflora Backbg. D. Kaktfrd. (1932) 124 

Synonyms Mediolobivia aureiflora (Backbg.) Backbg. 

Mediolobivia aureiflora var. albiseta Backbg. 

Mediolobivia aureiflora var. albilongiseta Backbg. 

Mediolobivia aureiflora var. albispina Backbg. nomen nudum 

Mediolobivia spiralisepala Schutz 

Rebutia aureiflora var. albilongiseta (Backbg.) Marshall & Bock, 

comb. nud. 

Rebutia aureiflora var. albiseta (Backbg.) Marshall & Bock. comb, 

nud. 

Rebutia aureiflora var. longiseta (Backbg.) Marshall & Bock. comb. 

nud. 

Rebutia aureiflora var. densispina Borg nomen nudum 

Rebutia aureiflora subspec. aureiflora (Backbg.) Donald 

Classification Section II Mediolobivia Subsection II Setirebutiae 

Body 40mm. in diameter becoming caespitose from the base, eventually 

forming clumps 100mm. in diameter. 

Areoles elliptical with white wool 

Spines c. 20, extremely variable not strongly differentiated into centrals 

and radials. Seedlings and offshoots on older plants with short 

spines 6-8mm. long yellowish at first, becoming all white and 

tipped yellowish-brown. Older plants with extremely long thin 

flexuous spines 50mm. or more in length, white tipped yellowish- 

brown. 

Flowers very large, 50mm. long and 45mm. in diameter, orange-yellow 

petals, throat white, tube light brownish-orange with small 

greenish-brown scales long thin flexuous hair and bristles are 

produced up to 10mm. long. Stigma yellow, style and filaments 

white, self sterile. 

Fruit large, 8mm. in diameter brownish-orange densely covered with 

long hairs. 

Seeds dull brownish-black 

Type locality Quebrada del Toro, Salta, Argentina. Map 2, No. 55. 

Notes This species belongs to a group of slow growing plants which are 

self sterile. Plants are rarely offered for sale mainly because what 

seed is available germinates very erratically. In our experience 

10% germination is all that can be expected. There are fourteen 

described varieties and in all probability they can all be included 

within the variation of the one species. For example var. 

albilongiseta has long pure white bristles, var. albiseta has 10mm. 

long white spines, var. boedeckeriana has 11-12 thin radial spines 

and pale orange flowers, var. rubelliflora with orange-red flowers, 

var. rubriflora with red flowers., In our opinion these differences do 

not justify varietal status. 

30

REBUTIACOSTATA 

Fig. 8 A rare and slow growing species that is shy flowering. The plant in the 

photograph has been in cultivation at Abbey Brook for over 20 years. 

REBUTIA COSTATA 

Rebutia costata Werd. Notizbl. Bot. Gart. u. Mus. Berlin (1934) 12 25 

Synonyms Lobivia costata (Werd.) Wessn. 

Digitorebutia costata (Werd.) Buin. 

Mediolobivia costata (Werd.) Krainz. 

Classification Section III Digitorebutia Sub Section II Euanthemae 

Body up to 25mm. in diameter simple at first but becoming caespitose 

with age. Epidermis deep bluish-green. 

Areoles elliptical with brownish wool, raised on tubercles arranged in 8-10 

distinct ribs. 

31

Spines centrals 0 (old areoles may have 1-2), radials 9-12 (14), pectinate 

and strongly projecting up to 7mm. long. White becoming 

yellowish-brown at the base. 

Flowers up to 35mm. long and 30mm. in diameter, deep orange, white throat 

buds green, tube greenish-brown with olive green scales and 

copiously hairy with a few long white bristles. Stigma cone shaped 

5 lobed, greenish-yellow style greenish filaments lavender pink. 

Seeds brownish. 

Type locality The type locality is unknown. It has recently been recollected by 

W. Rausch at La Quiaca, Jujuy, Argentina (R508). 

Notes This is a rare, slow growing species - the plant depicted in fig. 8 has 

been in cultivation for over 20 years and is still in a 3ins. pot. It is shy 

flowering and rarely sets seed. 

REBUTIA DEMINUTA 

Fig. 9 An easily flowered and widely grown species that was one of the first species 

to be discovered and described. 

32

REBUTIA DEMINUTA 

Rebutia deminuta (Web.) Br. & R. 

Synonyms Echinopsis deminuta Web. Bull Mus. Hist. Nat. Paris (1904) 386 

Echinocactus deminutus (Web.) Gürke 

echinorebutia deminuta (Web.) Frič & Krzgr. 

Aylostera deminuta (Web.) Backbg. 


Body individual heads about 50-60mm. high, dark green. Plants freely 

offsetting from the base and eventually forming large clumps more 

than 120mm. in diameter. 

Areoles elliptical, light brownish. 

Spines 10-12, not strongly differentiated into centrals and radials. Spines 

white tipped brown and 5-6mm. long. Central when present 

usually all brown. 

Flowers very free flowering, flowers up to 40mm. long and 30mm. broad. 

Petals deep orange-red with pink filaments and an 8 lobed white 

stigma. Small greenish scales and white hairs present on flower 

tube. Self fertile. 

Fruit 5mm. in diameter, greenish-red in colour and covered with 

bristles. 

Seeds small, matt black. 

Type locality Trancas, Tucuman State, N. Argentina. Map 4, No. 85. 

Notes Easily flowered and widely grown species. 

f. pseudominuscula (Speg.) Buin. & Donald body grey-green, heads 

slightly smaller than the type, spines 7-14, longer, up to 8-9mm., 

yellowish white, brown at base and tip. Flowers as in the type. 

REBUTIA EINSTEINII f. SCHMIEDCHENIANA 

Rebutia einsteinii f. schmiedcheniana (Köhler) Buin. & Donald 

Synonyms Lobivia schmiedcheniana Köhler Beitr. z. Skde. u. pflege, (1939) 37 

Cylindrorebutia schmiedcheniana (Köhler) Donald 

Mediolobivia schmiedcheniana (Köhler) Krainz. 

Rebutia schmiedickenana (Köhler) Marsh & Bock comb. nud. 

(should be Köhler and schmiedcheniana). 

Classification Section II Mediolobivia Sub Section II Cylindrorebutiae 

Body up to 35mm. in diameter becoming cylindrical with age. Some 

plants become caespitose but this is not always so. The epidermis 

is a dark brownish-green often tinged deep purple particularly 

during the winter. 

Areoles elliptical with sparse brownish wool raised on short tubercles 

spirally arranged. 

E 

33 

Hirt. -> 

Hist.

Spines slightly differentiated into two series, 15 radials appressed, 

pectinate, 12 up to 75mm. long, greyish-white, brownish at the 

base, upper 3 longer up to 18mm. and projecting. 1 (2) central 

spines to the upper three radials. Upper spines and centrals light 

brownish. 

Flowers 45mm. long and 35-40mm. in diameter, outer petals and sepals 

deep golden yellow. Stigma, style and filaments pale yellow tipped 

dark brownish yellow. Ovary and tube with copious white hair and 

long white bristles. 

Fruit large, 7mm, self fertile. Green tinged purple. 

Seed large, dome shaped, brownish. 

Type locality Cham volcano, Salta, N. Argentina. Map 4, No. 128. 

Notes This species has a very large underground tuberous root system 

and for this reason needs a gritty porous compost. Plants are most 

often seen grafted but this is unnecessary with careful cultivation. 

REBUTIA EINSTEINII f. SCHMIEDCHENIANUM 

Fig. 10 An uncommon species with a very large tuberous root system and large 

golden yellow flowers 

34

REBUTIA EUANTHEMA 

Fig. 11 An easily grown popular species with very showy flowers. 

REBUTIA EUANTHEMA 

Rebutia euanthema (Backbg.) Buin. & Donald 

Synonyms Lobivia euanthema Backbg. Blatt. f. Kakt. (1934) 2 

Mediolobivia euanthema (Backbg.) Krainz. 

Acantholobivia euanthema (Backbg.) Y. Ito 

Digitorebutia euanthema (Backbg.) Buin. 

Echinolobivia euanthema (Backbg.) Y. Ito 

Classification Section III Digitorebutia Subsection II Euanthemae 

Body heads 30mm. in diameter, grey-green often tinged amethyst, freely 

offsetting from the base and forming clumps 70-80mm. in diameter. 

Areoles elliptical, light brownish in colour. 

Spines often pectinate, about 10 radials, centrals absent Up to 10mm long, 

white tipped brown. Spines always slightly erect never appressed. 

This is one of the distinguishing features of Subsection II from 

subsection I Pygmaeae. (see analytical key to the Rebutia section) 

35

Flowers very free flowering, 45mm. long and 30mm. wide with orange-red 

petals. Flower tube very hairy with occasional bristles. Stigma and 

style greenish-yellow, 6-lobed, filaments lavender pink. 

Fruit brownish-red, densely covered with white hairs. 

Seeds dull brownish-black. 

Type locality given by Backeberg as South Bolivia - North Argentina. This 

species has recently been recollected by W. Rausch at Quebrada 

de Humahuaca Jujuy, Argentina (R214). 

Notes this is an easily grown popular species with very showy flowers. It 

is very closely related to a number of other species belonging to 

subsection II namely R. brachyantha and R. ritteri (see colour 

plate). 

REBUTIA FIEBRIGII 

Fig. 12 This photograph depicts Abbey Brook species No. CF2630 originally 

collected at Hacienda Ressini and having pure white spines and orange flowers. 

36

accomodate -> 

accommodate 

REBUTIA FIEBRIGII 

Rebutia fiebrigii (Guerke) Br. & R. 

Synonyms Echinocactus fiebrigii Guerke: Notizbl. Bot. Gart. u. Mus. Berlin 

(1905)4,183 

Echinorebutia fiebrigii (Guerke) Frič & Kreuzgr. 

Aylostera fiebrigii (Guerke) Backbg. 

Rebutia nivosa Ritter nomen nudum 

Rebutia fiebrigii f. densiseta Cullm. 

Rebutia fiebrigii var. densiseta (Cullm.) Oeser 


Body spherical becoming cylindrical with age, often 60mm. in diameter 

and 100- 120mm. high. Older plants offsetting from the base. 

Areoles prominent, elliptical, whitish in colour. 

Spines 30-40 bristle like radial white spines and 2-5 stiff centrals up to 

20mm. or more long, white tipped brown, sometimes pure white. 

Flowers 35mm. long and 30mm. broad, flame red with white stamens. 

Stigma 6 lobed pale yellow. Ovary and tube scaly with a few white 

hairs and bristles. 

Seed small, matt black. 

Type locality Iscayache, Bolivia 3600m. Map 4, No. 87. 

Notes Distinctive species and one of the first to be discovered and 

cultivated. Several recently described ‘species’ are probably 

referable here e.g. R. jujuyana, R. pulchella. 

R. fiebrigii, f. densiseta Cullm. (FR390) a form in which the spines 

are thinner and denser, spines tipped yellowish-brown, flowers 

orange. Originally collected at Hacienda Hura Khathalla ad 

Estancia Chujchi, Bolivia. Abbey Brook species No. CF2630, is a 

plant originally collected at Hacienda Ressini, Sucre by Gerhard 

Frank with longer spines than in the type, softer and all pure white, 

flowers clear orange. Attempts have been made to distinguish 

between the snow white populations and others having brown 

tipped spines. As Donald has pointed out, the original description 

by Guerke suggests an almost wholly white spined plant, but it 

could accommodate both white spined and the more commonly seen 

brown tipped spined plants. 

REBUTIA HELIOSA 

Rebutia heliosa Rausch (1970) Kakt. u. a. Sukk. 21 30 

Synonyms Aylostera heliosa Rausch comb. nud. 


Body solitary at first then offsetting profusely, 20mm. high and 25mm. in 

diameter. 

Areoles 0-5mm. wide, 1mm. long, light brown, felty. 

37 

Notizke -> 

Notizbl

Spines radials 24-26, 1mm. long, flattened against tubercles, diverted 

downwards, silvery-white, thickened and darker below. No 

central spines. 

Flowers 50mm. long and 25mm. in diameter, pale orange outer petals with 

purplish mid-stripe. The flowers have a very long thin tube (2mm. 

in diameter and 20mm. long) making the flower stand away from 

the plant body. Tube purplish, filaments white, stigma 6 lobed and 

style yellowish. 

Fruit tiny 3mm. in diameter with few seeds, (10-20) in each fruit, greenish 

later turning violet. Fruit covered with white hair like bristles. 

Seed black, spherical to helmet shaped with a papillate testa. 

Type locality Road between Tarija City and Narvaez at 2400-2500m., Bolivia. 

Map 4, No. 92. 

REBUTIA HELIOSA 

Fig. 13 One of the most beautiful, distinctive and unusual Rebutia species. 

38 

helmit -> 

helmet

Varieties Rebutia heliosa var. cajasensis Lau 405 

Rebutia heliosa var. condorensis Lau 401 (Syn. R. solisioides Knize 

nomen nudum) 

Rebutia heliosa x Rebutia albiflora. An interesting new hybrid, (see 

under R. albiflora) 

Notes One of the most beautiful and unusual Rebutia species, very 

distinctive. The plant seems to grow well on its own roots but plants 

are most often seen grafted which does tend to make the plants 

elongated and proliferate. 

Several ‘species’ are referable here, namely, supthutiana, 

albopectinata, perplexa, schatzliana and densipectinata. For an 

explanation of the confusion amongst these species an article in 

Ashingtonia (1979) 3 by John Donald helps to sort out the situation. 

REBUTIA KRAINZIANA 

Fig. 14 This is a superb and distinctive plant with very large flowers. 

39

REBUTIA KRAINZIANA 

Rebutia krainziana Kesselring: Sukkulentenkunde (1948) II, 23-24 

Synonyms Rebutia calliantha var. densiseta Bew. nomen nudum 

Rebutia calliantha var. krainziana (Kess.) Buin. & Donald 

Rebutia wessneriana var. densiseta nomen nudum 

Rebutia wessneriana var. krainziana (Kess.) Buin. & Donald 

Classification Section IV Rebutia Subsection II Mediorebutiae 

Body up to 50mm. in diameter and becoming caespitose with age 

forming large clumps 100mm. or more in diameter. 

Areoles very prominent, ellipitical and with white felt. 

Spines pectinate, adpressed, up to 12 radials pure white, centrals absent. 

Flowers very large and beautiful, 40mm. long and 40mm. wide. Usually dark 

red but there is a form (f. breviseta) with clear orange flowers. 5 

lobed stigma, style white, filaments yellow. Self sterile. 

Fruit large, 8mm. in diameter with small brownish red scales. 

Seeds black shiny, dome-shaped with white basal hylum area. Testa near 

hylum reticulate but becoming tuberculate at the apex. 

Type locality is unknown. It has recently been recollected at Yavi, Jujuy, 

Argentina. Map 3, No. 70 

Notes This is a superb and striking plant with very large beautiful flowers. 

When not in flower the plant is one of the most attractive species. 

R. krainziana f. breviseta with orange flowers may be a hybrid 

between R. krainziana and R. marsoneri. The following 

combinations also belong with this taxa. 

R. krainziana var. breviseta (Backbg.) Donald 

R. krainziana f. breviseta (Backbg.) Krainz & Haarm. 

R. senilis v. breviseta Backbg. 

R. senilis f. breviseta (Backbg.) Backbg. 

REBUTIA KUPPERIANA 

Rebutia kupperiana Böd.: Monatss. D.K.G. (1932) 276-277 

Synonyms Aylostera kupperiana (Böd.) Backbg. 

Echinorebutia kupperiana (Böd.) Frič & Krzgr. 


Body up to 40mm. in diameter and becoming caespitose with age. 

Epidermis very dark brownish-green. 

Areoles circular with brownish wool, raised on short tubercles. 

Spines strongly differentiated into centrals and radials. Centrals 2, upper 

12-15mm. long, lower 20mm. long at first dark chocolate brown in 

age becoming greyish with a blackish tip. Radials 10-12, strongly 

projecting, 6-12mm. long, somewhat flexuous, white with dark 

brown tips. 

40

Flowers very large and beautiful 50mm. long and 40mm. in diameter, dark 

orange-red. Tube 15mm. long greenish with long bristles. Stigma 6 

lobed, filaments and style white. 

Fruit greenish, 5mm. in diameter. 

Seeds greyish black. 

Type locality near Tarija at 2500m. altitude, Bolivia. Map 4, No. 99. 

Notes This is yet another magnificent species discovered by Friedrich 

Ritter in 1931. 

Varieties Rebutia kupperiana var. spiniflora Ritter (FR762b) 

REBUTIA KUPPERIANA 

Fig. 15 This is yet another magnificent species discovered by Friedrich Ritter. It 

has dark brown spines and very large dark orange-red flowers. 

41 

7626 —> 

762b

REBUTIA MARSONERI 

Fig. 16 Another superb species with golden yellow flowers 

REBUTIA MARSONERI 

Rebutia marsoneri Werdermann: Kakteenkunde (1937) 2 

Synonyms Rebutia marsoneri var. albescens hort. nomen nudum 

Rebutia marsoneri var. breviseta hort. nomen nudum 

Rebutia marsoneri var. brevispina Donald nomen nudum 

Rebutia marsoneri var. grandiflora Donald nomen nudum 

Rebutia marsoneri var. spathulata Donald nomen nudum 

Rebutia marsoneri f. spathulata Donald nomen nudum 

Rebutia marsoneri var. vatteri Donald nomen nudum 

Rebutia peruviana hort. nomen nudum 


Body up to 70mm. in diameter becoming caespitose with age. 

42

Areoles ellipitical with dense white wool. 

Spines very variable in size and number, c. 10 undifferentiated into 

centrals and radials, up to 15mm. long, whitish or tinged yellow. In f. 

brevispina all the spines are pectinate, white and less than 5mm. 

long. 

Flowers large, 40mm. long and 35mm. in diameter. Usually golden yellow 

but sometimes lighter yellow, sometimes orange-yellow. Stigma 

5-10 lobed, style and filaments golden yellow. The buds 

are variable in colour sometimes red and sometimes strikingly 

bright green. 

Fruit large, 8mm. in diameter. 

Seeds black, shiny, dome-shaped with white basal hylum area. 

Type locality North Jujuy, Argentina. Map 3, No. 71. 

Notes A superb species named after Oreste Marsoner, an Italian who has 

collected extensively in Argentina. This species is relatively rare 

in cultivation because it is self sterile and seed is not as readily 

available as self fertile species. There are a number of varieties 

and forms most of which are insufficiently different to warrant 

separate classification, (see colour plate). 

REBUTIA MINUSCULA 

Fig. 17 This is one of the easiest and most widely grown of all species of Cacti. 

43 

ospecies 

deleted

REBUTIA MINUSCULA 

Rebutia minuscula K. Sch.: Monats. f. Kakt. (1895) 5, 102 

Synonyms Echinopsis minuscula Web. 

Echinocactus minuscula Web. 

Rebutia minuscula v. multiflora Frič nomen nudum 

Rebutia petersonii Hort. nomen nudum 

Classification Section IV Rebutia Subsection I Rebutiae 

Body up to 50mm. in diameter and becoming strongly caespitose with 

age soon forming large clumps 150mm. or more in diameter. 

Epidermis deep green. 

Areoles circular with sparse white wool. 

Spines numerous, c. 40, undifferentiated into radials and centrals and 

arranged like needles on a pin cushion. Spines up to 5mm. long, 

whitish, sometimes becoming brownish at the base. 

Flowers large, up to 40mm. long and 35mm. in diameter, bright red. 6 lobed 

stigma, style pinkish, filaments golden yellow. 

Fruit 6mm. in diameter, orange-red. 

Seeds black, shining. 

Type locality Tucuman, N. Argentina. Map 3, No. 61. 

Notes One of the easiest and most widely grown of all species of Cacti. It 

can be flowered when only 1 year old from seed. It was the first 

species of Rebutia to be described. 

There is a form in cultivation R. minuscula f. grandiflora which has a 

very elongated flower tube making the flower 70mm. long. 

Consult the section on flowers and floral structure. 

REBUTIA MUSCULA 

Rebutia muscula Ritter & Thiele: Taxon (1963) 12,29 

Synonyms Aylostera muscula (Ritter & Thiele) Backbg. 

Rebutia nivosa Ritter nomen nudum 

Rebutia muscula v. nivosa Knize comb. nud. 


Body up to 5cm. in diameter becoming caespitose with age, individual 

heads becoming elongated. 

Areoles circular with white wool. 

Spines pure white, soft bristle like, centrals indistinguishable from the 

radials. 6mm. long, 50-55 in number. 

44

Flowers 40mm. long and 25mm. in diameter, sepals greenish-orange, petals 

flame orange, throat white. Stigma very pale green, style white, 

filaments white. Flower tube and ovary with very small scales. Very 

thin flexuous white hairs up to 8mm. long produced from the axils of 

the scales. 

Seeds small, dull black, dome shaped. 

Type locality Narvaez, Dept. Tarija, Bolivia. Map 4, No. 103. 

Notes Beautiful pure white spined species with gorgeous clear orange 

flowers. Flowers are often produced at odd times during the year 

but the main flowering time is at the end of May beginning of June. 

Plants labelled as R. nivosa are referable here, there is no distinct 

difference and it was found at the same locality. 

(see illustration on front cover) 

REBUTIA PSEUDODEMINUTA 

Rebutia pseudodeminuta Backbg. non Frič (1933) D.K.F. 7 

Synonyms Aylostera pseudodeminuta (Backbg.) Backbg. 


Body globular up to 10cm. high, 5-6cm. wide, light green in colour, 

offsetting grousely at first but later forming large clumps 100mm. or 

more in diameter. 

Areoles small with sparse light brown wool. 

Spines radials ten or more, 3-7mm. long, glossy white. Centrals 2-3, 

yellowish-white at first later turning brown-tipped, up to 15mm. 

long. 

Flowers 30mm. long and 30mm. wide, petals red, buds dark red. Style and 

filaments white united with the tube, 5 lobed stigma. 

Fruit round, small with many bristles. 

Seed very small, matt black. 

Habitat Salta, N. Argentina. Map 4, No. 107. 

Varieties f. albiseta (Backbg.) Buin. & Donald. Central spines entirely white. 

f. grandiflora (Backbg.) Buin. & Donald. Flower 4cm. wide and 

40mm. long. 

f. schneideriana (Backbg.) Buin. & Donald. Central spines up to 

35mm. long, dark tipped. 

f. schumanniana (Backbg.) Buin. & Donald. Central spines golden 

brown, about 12mm. long. 

Notes Another of the ‘original’ Rebutias, quite distinct with its prominent 

tubercles and spination. 

45

REBUTIA PYGMAEA 

Fig. 18 A distinctive species with pectinate spines. It has very large flowers when 

compared to the size of the plants. 

REBUTIA PYGMAEA 

Rebutia pygmaea (R. E. Fries) Br. & R. 

Synonyms Echinopsis pygmaea R. E. Fries Nov. Act. Soc. Sci. Upsala (1905) IV 

120 

Acantholobivia haagei (Frič & Schelle) Y. Ito. 

Digitorebutia digitiformis (Backbg.) Buin. 

Digitorebutia haagei (Frič & Schelle) Frič 

Digitorebutia haagei var. digitiformis (Backbg.) Donald 

Digitorebutia haagei var. orurensis (Backbg.) Donald 

Digitorebutia haagei var. pectinata (Backbg.) Donald 

Digitorebutia orurensis (Backbg.) Buin. oreurensis -> 

orurensis 

46

Digitorebutia pectinata (Backbg.) Buin. 

Digitorebutia pygmaea (R. E. Fries) Donald 

Digitorebutia steinmannii sensu Buin. 

Echinolobivia haagei (Frič & Schelle) Y. Ito. 

Lobivia neo-haageana Backbg. 

Lobivia pygmaea (R. E. Fries) Backbg. 

Mediolobivia haagei (Frič & Schelle) Backbg. 

Mediolobivia haagei var. digitiformis (Backbg.) Donald 

Mediolobivia haagei var. orurensis (Backbg.) Donald 

Mediolobivia haagei var. pectinata (Backbg.) Donald 

Mediolobivia haageana Borg nomen nudum 

Mediolobivia orurensis (Backbg.) Backbg. 

Mediolobivia pygmaea (R. E. Fries) Backbg. 

Mediolobivia pectinata (Backbg.) Backbg. non Frič 

Mediolobivia pectinata var. digitiformis (Backbg.) Backbg. 

Mediolobivia pectinata var. orurensis (Backbg.) Backbg. 

Mediolobivia pectinata var. neosteinmannii Backbg. 

Pygmaeolobivia odierata Hort. nomen nudum 

Pygmaeolobivia pygmaea (R. E. Fries) 

Rebutia haagei Frič & Schelle 

Rebutia orurensis Backbg. 

Rebutia pectinata Backbg. 

Rebutia pectinata var. digitiformis Backbg. 

Rebutia pectinata var. orurensis Backbg. 

Classification Section III Digitorebutia Subsection I Pygmaeae 

Body up to 25mm. in diameter, simple at first but becoming caespitose 

with age. The epidermis bluish-green often tinged deep purple 

particularly during the winter. 

Areoles elliptical with sparse greyish-brown wool, raised in the tubercles. 

Spines arranged in 12 distinct ribs. Centrals absent, radials strongly 

pectinate and adpressed, up to 12 in number, 4mm. long, greyish- 

white, brownish at the base. 

Flowers very variable, pink to salmon often bicoloured, 25mm. long and 

20mm. in diameter with a white throat. Stigma 6 lobed green, style 

green, filaments white or pinkish. Tube brownish-green with 

green scales with copious white wool. 

Fruit dull brownish-black, dome shaped, testa finely pitted. 

Seed large, 7mm. in diameter, greenish-brown covered with white wool. 

Type locality Yavi, Jujuy Province, N. Argentina. Map 2, No. 35. 

Notes This species has a very wide geographical range and a large 

number of minor variations occur. Many of these minor variations 

have been described as ‘new’ species or varieties. There are for 

example a very large number of flower colour variants and also 

spine colour variants. It is indeed possible that this species could 

include 90% of all the species ascribed to the subsection 

Pygmaeae! 

47

REBUTIA SENILIS f. STUEMERI 

Rebutia senilis f. stuemeri (Backbg.) Buin. & Donald 

Synonyms Rebutia senilis v. stuemeri Backbg. D. Kakt. frd. (1932) 131 

Rebutia senilis v. stuemeriana Backbg. 


Body up to 60mm. in diameter and becoming caespitose with age. 

Areoles elliptical with white wool. 

Spines pure white, stiff bristle like, centrals hardly distinguishable from 

the radials. 15-30 in number, size is variable - at the top of the 

plant spines up to 18mm. long. Older areoles at the base of the plant 

produce longer spines up to 25mm. long. 

Flowers 50mm. long and 40mm. in diameter, clear red with a yellowish 

throat. Stigma 5 lobed, style and filaments golden yellow. Self 

fertile. 

Fruit yellowish, 7mm. in diameter. 

Seed black, shiny, elongated dome-shaped with a white basal hylum 

area. Testa near hylum more or less reticulate but becoming 

tuberculate at the apex. 

Type locality Quebrada Escoipe, Salta, Argentina. Map 3, No. 66. 

Notes R. almeyeri W. Heinr. probably belongs here. In Backbg. (1977) it is 

described as a self fertile species with orange-red flowers with a 

yellowish throat and a yellow style, locality unknown. 

REBUTIA SPINOSISSIMA 

Rebutia spinosissima Backbg. (1935) Kaktus ABC., 275 

Synonyms Aylostera spinosissima (Backbg.) Backbg. 

Aylostera spinosissima var. brunispina Backbg. nomen nudum 


Body up to 35mm. in diameter becoming caespitose with age eventually 

forming large clumps. 

Areoles circular to elliptical with greyish wool. 

Spines soft and bristle like, about 20, not strongly differentiated into 

centrals and radials. ‘Radial’ spines up to 6mm. long, all white, 

‘centrals’ at first yellow tipped brown later all brown. 

Flowers 40mm. long and 30mm. in diameter. Petals orange-red, tube 

greenish, 8 lobed stigma, filaments and style white. 

Fruit greenish brown 4mm. in diameter with white hairs and bristles. 

Seeds elongated dome shaped, dull brownish black. 

Type locality Salta Province, N. Argentina. Map 4, No. 116. 

Notes This is a beautiful species with soft bristle like spines and orange 

flowers. It is slow growing and an asset to any Rebutia collection. 

Closely related to R. muscula and R. fiebrigii 

48

REBUTIA SPINOSISSIMA 

Fig. 19 A slow growing species with soft bristle-like spines and orange flowers. 

REBUTIA WESSNERIANA 

Rebutia wessneriana Bew. Sukkulentenkunde Jahrb. Schweiz. 

Kakt. Ges. (1948)2 24 

Synonyms Rebutia calliantha Bew. 

Rebutia hyalacantha (Backbg.) Backbg. 

Rebutia senilis var. hyalacantha Backbg. 

Rebutia senilis f. hyalacantha (Backbg.) ex Simon 

Rebutia wessneriana var. calliantha (Bew.) Krainz 

Rebutia wessneriana var. permutata (Heinr.) Buin. & Donald 

Rebutia wessneriana subspec. wessneriana f. calliantha (Bew.) 

Buin. & Donald 

49 

Schwiez 

-> Schweiz

REBUTIA WESSNERIANA 

Fig. 20 A superb large growing, large flowering species 

Rebutia wessneriana subspec. wessneriana var. gokrausei (Heinr.) 

Donald 

Rebutia wessneriana subspec. wessneriana var. gokrausei f. 

permutata (Heinr.) Donald 


Body large, up to 100m. in diameter, caespitose and forming large 

clumps with age 

Areoles elliptical raised up on tubercles with white wool 

Spines not differentiated into centrals 

50 

gokausei -> 

gokrausei

Flowers very large, 45mm. long and 40mm. in diameter. Petals dark red, 

buds dark purplish-red. Stigma 6 lobed, style yellowish-white, 

filaments orange. Self sterile. 

Fruit large, 8mm. in diameter, yellowish 

Seed black, shiny, dome shaped with white basal hylum area. 

Type locality Quebrada de Humahuaca, Jujuy, Arg.? Map 3, No. 74. 

Notes A superb large growing large flowered species which is 

uncommon in collections because the plant is self sterile and seed 

is therefore not readily available. Originally R. wessneriana was 

separated from R. calliantha by flower colour, scarlet in calliantha 

and bluish-red in wessneriana, and on the observation that the 

spines cover the stem apex in calliantha but did not hide the stem 

apex in wessneriana. Such minor differences are not sustained and 

are only observed in extreme plants and are not exhibited by the 

population as a whole. (see colour plate). 

REBUTIA XANTHOCARPA f. SALMONEA 

Rebutia xanthocarpa f. salmonea (Frič ex Backbg.) Buin. & Donald 

Synonyms Rebutia xanthocarpa var. salmonea Frič ex Backbg. (1951) Cact. 

Succ. J. Amer. 23 83 

Rebutia salmonea Frič non Backbg. nomen nudum 

Rebutia senilis var. salmonea (Backbg.) Marsh. 


Body 40mm. in diameter, very slowly becoming caespitose with age. 

Areoles elliptical with greyish brown felt. 

Spines not differentiated into centrals and radials, c. 15. Short stiff and 

bristle like, 2mm. long occasionally 4mm., white tinged yellow. 

Flowers small, 15mm. long and 15mm. in diameter. A beautiful salmon pink. 

Tube yellow with greenish yellow scales. Stigma 6 lobed, yellowish 

white. Style and filaments white. 

Fruit large 7mm. in diameter, golden yellow, (not pale red, Backbg. 

Lexicon P. 439) 

Seeds small, black shining with white basal hylum area. 

Habitat unknown, but probably Salta area, Argentina. Map 3, No. 67. 

Notes An easily grown and flowered plant with a very characteristic and 

distinctive flower colour. (see colour plate). 

51 

Humuhuaca -> 

Humahuaca

Check list of Genera, Subgenera and Sections 

The following is a list of the more important genera to which members of the 

genus Rebutia have been assigned. There are in addition to the following list a 

number of additional generic names which have not been published in accordance 

with the code of Botanical Nomenclature and which are probably best forgotten. The 

correct Rebutia section for the plants which were originally placed under these 

names is indicated in brackets after the name. It follows the taxonomic arrangement 

used in this booklet. The original publication and date is given for the most important 

of these generic names. 

Acantholobivia Y. Ito. non Backbg. (Rebutia Section III) (1957) Expl. Diagr. 130 

Aylostera Speg. (Rebutia Section I) (1923) An. Soc. Cient. Argent. 96 75 

Cylindrorebutia Frič & Kreuzgr. nomen nudum (Rebutia Section II) (1938) Succulenta 

20 55 & 71 

Cylindrorebutia Buin. & Donald pro. sect. (Rebutia Section II) (1963) 

Sukkulentenkunde Jb. Schweiz Kakt. Ges. 8 98 

Digitorebutia Frič & Kreuzgr. nomen nudum (Rebutia Section III) (1938) Succulenta 

20 54 

Digitorebutia Frič & Kreuzgr. ex. Buin. (Rebutia Section III) (1940) Succulenta 22 51 

Digitorebutia Buin. & Donald pro. sect. (Rebutia Section III) (1963) Sukkulentenkunde 

Jb. Schweiz Kakt. Ges. 8 98 

Echinocactus Link & Otto (Rebutia Section 1, 11 and IV) (1827) Verh. Ver. Beford. 

Gartenb. 3 420 

Echinocactus Weber, ex K. Sch. (Rebutia Section 1,11 and IV) (1898) Gesamtbeschr. 

Kakt. 396 

Echinolobivia Y. Ito. (Rebutia Section III) (1957) Expl. Diagr. 

Echinopsis Zucc. (Rebutia Section 1, 11 and IV) (1837) Abh. Bayer. Akad. Wiss. 

München 2 675 

Echinorebutia Frič & Kreuzgr. nomen nudum (Rebutia Section I) (1935) Verzeichnis 

26 

Lobivia Br. & R. (Rebutia Section 11 and III) (1922) The Cactaceae III 49 

Lobivia subgen. Pygmaeolobivia Backbg. nomen nudum (Rebutia Section II) (1934) 

Blatt. f. Kakteenf. 

Mediolobivia Backbg. (Rebutia Section I, II and III) (1934) Blatt. f. Kakteenf. 

Mediolobivia subgen. Eumediolobivia Backbg. (Rebutia Section II) (1942) Cact. Jb. 

D.K.G. 1135 

Mediolobivia subgen. Pygmaeolobivia Backbg. (Rebutia Section III) (1941) Cact. Jb. 

D.K.G. 

Mediorebutia hort. nomen nudum (Rebutia Section IV) 

Mediorebutia Buin. & Donald pro, sect. (Rebutia Section IV) 

Rebulobivia Frič & Kreuzgr. (Rebutia Section II) (1936) Succulenta 18 104 

Rebutia K. Sch. (1895) Monatsschr. f. Kakteenfreunde 5 102 

Rebutia K. Sch. emend Buin. & Donald (1963) Sukkulentenkunde 7 96 

Rebutia subgen. Eurebutia Backbg. non Frič. (Rebutia Section IV) (1934) Blatt. f. 

Kakteenf. 

Rebutia subgen. Neorebutia Bew. (Rebutia Section IV) (1949) Sukkulentenkunde Jb. 

Schweiz Kakt. Ges. 3 54 

Setirebutia Frič & Kreuzgr. nomen nudum (Rebutia Section II) (1935) Verzeichnis 26 

52 

Coc -> Soc 

Gesamtbexhr -> 

Gesamtbeschr 

Beyer -> 

Bayer 

Monatschr -> 

Monatsschr

Setirebutia Frič & Kreuzgr. (Rebutia Section II) (1938) Succulenta 20 53 

Setirebutia Buin. & Donald pro. sect. (Rebutia Section II) (1963) Sukkulentenkunde Jb. 

Schweiz Kakt. Ges. 7 98 

Check list of Genus Aylostera Speg. 

albiareolata Ritter comb. nud. = R. albiareolata 

albiflora (Ritt. & Buin.) Backbg. = R. albiflora 

albipilosa (Ritt.) Backbg. = R. albipilosa 

albopectinata Rausch comb. nud. = R. albopectinata 

buiningiana Rausch comb, nud. = R. buiningiana 

buiningiana Ritter nomen nudum (not R. buiningiana Rausch) = R. spinosissima 

caespitosa Frič nomen nudum = ? 

camarguensis Rausch comb. nud. = R. camarguensis 

deminuta = R. deminuta 

deminuta var. pseudominuscula = R. deminuta f. pseudominuscula 

densipectinata Ritter comb. nud. = R. densipectinata 

diersiana Rausch comb. nud. = R. diersiana 

fiebrigii (Guerke) Backbg. = R. fiebrigii 

fiebrigii var. castanea Rausch nomen nudum= R. fiebrigii 

fiebrigii var. densiseta Cullm. = R. fiebrigii f. densiseta 

fiebrigii var. spinosior nomen nudum = R. fiebrigii 

flavistyla Ritter comb. nud. = R. flavistyla 

fulviseta Rausch comb. nud. = R. fulviseta 

fulviseta var. albispina Rausch nomen nudum 

graciliflora (Backbg.) Rausch comb. nud. = R. graciliflora 

grandiflora Frič nomen nudum = ? R. pseudodeminuta f. grandiflora 

heliosa Rausch nomen comb. = R. heliosa 

hoffmanii Diers. et Rausch comb. nud. = R. hoffmannii 

huasiensis Rausch comb. nud. = R. huasiensis 

ithyacantha Card. = R. ithyacantha 

jujuyana Rausch comb. nud. = R. jujuyana 

kieslingii Rausch comb. nud. = R. kieslingii 

kruegerii Card. = Sulcorebutia kruegerii 

kupperiana (Böd.) Backbg. = R. kupperiana 

lampromeliana Rausch nomen nudum = R. pulchella 

leucanthema Rausch comb. nud. = R. leucanthema 

mamillosa Rausch comb. nud. = R. mamillosa 

maxima Ritter nomen nudum = ? 

muscula (Ritt. & Thiele) Backbg. = R. muscula 

narvaecense Card. = R. narvaecense 

odontopetala Ritter comb. nud. = R. odontopetala 

padcayensis Rausch comb. nud. = R. padcayensis 

patericalyx Ritter comb. nud. = R. patericalyx 

pectinata Frič nomen nudum = R. pygmaea 

pseudodeminuta (Backbg.) Backbg. = R. pseudodeminuta 

pseudodeminuta var. albiseta Backbg. = R. pseudodeminuta f. albiseta 

pseudodeminuta var. grandiflora Backbg. = R. pseudodeminuta f. grandiflora 

53

pseudodeminuta f. rubrifilamentosa Buin. & Donald comb. nud. = 

R. pseudodeminuta f. rubrifilamentosa 

pseudodeminuta var. schneideriana Backbg. = R. pseudodeminuta f. schneideriana 

pseudodeminuta var. schumanniana (Backbg.) Backbg. = 

R. pseudodeminuta f. schumanniana 

pseudominuscula (Speg.) Speg. = R. deminuta f. pseudominuscula 

pulchella Rausch comb. nud. = R. pulchella 

pulvinosa (Ritt. & Buin.) Backbg. = R. pulvinosa 

robustiflora Frič = ? 

robustispina (Ritt.) Backbg. = R. robustispina 

rubiginosa (Ritt.) Backbg. = R. rubiginosa 

sanguinea Ritter comb. nud. = R. sanguinea 

schatzliana Rausch comb. nud. = R. schatzliana 

sordida Rausch nomen nudum. = ? 

spegazziniana (Backbg.) Backbg. = R. spegazziniana 

spegazziniana var. atroviridis Backbg. = R. spegazziniana var. atroviridis 

spegazziniana var. waltheriana Backbg. nomen nudum = R. spegazziniana 

spinosissima (Backbg.) Backbg. = R. spinosissima 

spinosissima var. aurea Rausch nomen nudum = R. spinosissima 

spinosissima var. brunispina = R. spinosissima 

spinosissima var. buiningiana Ritter nomen nudum = R. spinosissima 

steinmannii (Solms-Laub.) Backbg. = R. steinmannii 

[not R. pygmaea (R. E. Fries) Br. & R.!] 

supthutiana Rausch comb. nud. = R. supthutiana 

tarijensis Rausch comb. nud. = R. tarijensis 

tuberosa (Ritter) Backbg. = R. tuberosa 

umbraculiforma Rausch nomen nudum = R. camarguensis 

vallegrandensis Card. = R. vallegrandensis 

waltheriana (Backbg.) Y. Ito. = ? R. spegazziniana 

zavaletae Card. = Sulcorebutia zavaletae (Card.) Backbg. 

Check list of Genus Digitorebutia Frič. Kreuzgr. Buin. 

albopectinata Rausch comb. nud. = R. albopectinata 

atrovirens (Backbg.) = R. pygmaea var. atrovirens 

brachyantha (Wessn.) Buin. = R. brachyantha 

brachyantha var. ritteri (Wessn.) Donald = R. ritteri 

brunescens Rausch comb. nud. = R. brunescens 

canacruzensis Rausch comb. nud. = R. canacruzensis 

christinae Rausch comb. nud. = R. christinae 

cincinnata Rausch comb. nud. = R. cincinnata 

costata (Werd.) Buin. = R. costata 

costata var. eucalyptana (Backbg.) Donald = R. costata f. eucalyptana 


diersiana var. atrovirens Rausch comb. nud. = R. diersiana v. atrovirens 

digitiformis (Backbg.) Buin. = R. pygmaea 

donaldiana Rausch nomen nudum = R. steinmannii v. cincinnata 

Rausch nomen nudum (R300) 

54 

steinmanii -> 

steinmannii

eucalyptana (Backbg.) Buin. = R. costata f. eucalyptana 

euanthema (Backbg.) Buin. = R. euanthema 

euanthema var. friciana Donald & Cullm. comb. nud. = R. euanthema f. fricii 

euanthema var. longispina (Backbg.) Donald comb. nud. = R. euanthema 

euanthema var. oculata (Werd.) Donald = R. euanthema f. oculata 

haagei (Frič & Schelle) Frič = R. pygmaea 

haagei var. digitiformis (Backbg.) Donald = R. pygmaea 

haagei var. atrovirens (Backbg.) Donald = R. pygmaea v. atrovirens 

haagei var. orurensis (Backbg.) Donald = R. pygmaea 

haagei var. pectinata (Backbg.) Donald = R. pygmaea 

haefneriana (Cullm.) Donald = R. pygmaea f. haefneriana 

mudanensis Rausch comb. nud. = R. mudanensis 

nazarenoensis Rausch (1979) Succulenta 58 185. 

nigricans (Wessn.) Buin. = R. ritteri var. nigricans 

orurensis (Backbg.) Buin. = R. pygmaea 

oculata (Werd.) Buin. = R. euanthema f. oculata 

oculata var. friciana Donald & Cullm. = R. euanthema f. fricii 

pectinata (Backbg.) Buin. = R. pygmaea 

peterseimii (Frič & Kreuzgr.) Donald comb. nud. = 

R. ritteri var. nigricans f. peterseimii 

pygmaea (R. E. Fries) Donald = R. pygmaea 

rauschii Zecher comb. nud. = R. rauschii 

ritteri (Wessn.) Buin. = R. ritteri 

steinmannii sensu Buin. = R. pygmaea 

c.v. ‘A. V. Frič’ Donald & Cullm. = R. euanthema f. fricii 

Check list of Genus Mediolobivia Backbg. 

albilongiseta nomen nudum = R. aureiflora 

albinidulans Frič nomen nudum = ? 

albiscoparia Frič nomen nudum = ? 

albiseta Frič nomen nudum = R. aureiflora 

albiseta var. aureiflora Frič nomen nudum = R. aureiflora 

albiseta var. rubriflora Frič nomen nudum = R. aureiflora f. rubriflora 

albispina Frič nomen nudum = ? R. aureiflora 

albopectinata Rausch = R. albopectinata 

antarctica Hort. nomen nudum = ? 

apricusioides Frič nomen nudum = ? 

auranitida (Wessn.) Krainz = R. auranitida 

auranitida var. flaviflora Backbg. = R. auranitida 

auranitida var. gracilis (Wessn.) Backbg. = R. auranitida f. gracilis 

aureiflora (Backbg.) Backbg. = R. aureiflora 

aureiflora var. albiseta Backbg. = R. aureiflora 

aureiflora var. albi-longiseta Backbg. = R. aureiflora 

aureiflora var. albispina Backbg. nomen nudum = R. aureiflora 

aureiflora var. boedeckeriana (Backbg.) Backbg. = R. aureiflora f. boedeckeriana 

aureiflora var. brevispina Backbg. nomen nudum = R. aureiflora 

55 

Kreuzr -> 

Kreuzgr

aureiflora var. duursmaiana (Backbg.) Backbg. = R. aureiflora f. duursmaiana 

aureiflora var. haertlingiana hort. nomen nudum = R. aureiflora f. rubriflora 

aureiflora var. leucolutea Backbg. nomen nudum = R. aureiflora 

aureiflora var. lilacinostoma Backbg. nomen nudum = R. aureiflora 

aureiflora var. longiseta Backbg. nomen nudum = R. aureiflora 

aureiflora var. longispina Wenzel nomen nudum = R. aureiflora 

aureiflora var. rubelliflora (Backbg.) Backbg. = R. aureiflora f. rubelliflora 

aureiflora var. robustior Backbg. nomen nudum = R. aureiflora 

aureiflora var. rubriflora (Backbg.) Backbg. = R. aureiflora f. rubriflora 

aureiflora var. rubriflora f. kesselringiana (Cullm.) Köhler) = R. aureiflora f. rubriflora 

aureiflora var. sarothroides (Werd.) Backbg. = R. aureiflora f. sarothroides 

aureiflora var. variegata Backbg. nomen nudum = R. aureiflora 

aureiflora subvar. leucolutea (Backbg.) Backbg. = R. aureiflora 

aureiflora subvar. lilacinostoma (Backbg.) Backbg. = R. aureiflora 

atrovirens (Backbg.) Backbg. = R. pygmaea f. atrovirens 

atroviridis hort. (catalogue 1974 Uhlig) U1396 = ? 

blossfeldii (Werd.) Buin. = R. aureiflora f. rubriflora 

blossfeldii var. campactiflora Wessn. = R. aureiflora f. rubriflora 

blossfeldii var. nigrilongiseta Wessn. = R. aureiflora f. rubriflora 

boedeckeriana Backbg. = R. aureiflora f. boedeckeriana 

brachyantha (Wessn.) Krainz = R. brachyantha 

breviseta Frič nomen nudum = ? 

brunescens (Rausch) Backbg. comb. nud. = R. brunescens 

bruneoradicata Ritter comb. nud. = R. bruneoradicata 

brunicentra Frič nomen nudum = ? 

brunicentra var. roseiflora Frič nomen nudum = ? 

bruniscoparia Frič nomen nudum = ? 

bruniscoperia -> bruniscoparia 

bruniscoparia var. chata Frič nomen nudum = ? 

bulbispina hort. (catalogue 1974 Uhlig) U2250 = ? 

cachiensis Frič nomen nudum = ? 

cajasensis (Ritter) Backbg. comb. nud. = R. cajasensis 

calenduliflora Frič nomen nudum = ? 

calva Frič nomen nudum = ? 

calva var. similis Frič nomen nudum = ? 

carminata Backbg. ex Krainz nomen nudum = R. aureiflora f. rubriflora 

citriaurata Frič nomen nudum = ? 

columnaris (Wessn.) Krainz. = R. einsteinii f. columnaris 

columnaris Frič nomen nudum = ? R. einsteinii f. columnaris 

conoidea (Wessn.) Krainz. = R. einsteinii f. conoidea 

conoidea var. columnaris (Wessn.) Backbg. = R. einsteinii f. columnaris 

costata (Werd.) Krainz = R. costata 

costata var. brachyantha (Wessn.) Donald nomen nudum = R. brachyantha 

costata var. eucalyptana (Backbg.) Donald comb. nud. = R. costata f. eucalyptana 

cupreata Frič nomen nudum = ? 


digitiformis (Backbg.) Backbg. = R. pygmaea 

disciformis Frič nomen nudum = ? 

duursmaiana Backbg. = R. aureiflora f. duursmaiana 

56

einsteinii = R. einsteinii 

einsteinii var. atrovirens = ? R. einsteinii f. rubriviridis 

elegans Backbg. = R. aureiflora v. elegans 

elegans var. gracilis Backbg. nomen nudum = R. aureiflora v. elegans 

eos Rausch comb. nud. = R. eos 

eos var. roseiflora Rausch comb. nud. = R. eos 

erythrantha Backbg. nomen nudum = R. aureiflora f. rubriflora 

escayachensis Knize nomen nudum KK1686 

euanthema (Backbg.) Krainz = R. euanthema 

euanthema var. fricii (Hort.) Backbg. = R. euanthema f. fricii 

euanthema var. pygmaea (Backbg.) Donald comb. nud. = 

R. euanthema f. neopygmaea 

euanthema var. ritteri (Wessn.) Donald comb. nud. = R. ritteri 

eucalyptana (Backbg.) Krainz = R. costata f. eucalyptana 

fricii hort. = R. euanthema f. fricii 

friedrichiana Rausch comb. nud. = R. friedrichiana 

fuauxiana Backbg. = R. fuauxiana 

grandiflora Frič nomen nudum = ? 

haageana Borg nomen nudum = ? R. pygmaea 

haagei (Frič & Schelle) Backbg. = R. pygmaea 

haagei var. atrovirens (Backbg.) Donald comb. nud. = R. pygmaea f. atrovirens 

haagei var. chamaeleon Frič nomen nudum = R. pygmaea f. flavovirens 

haagei var. digitiformis (Backbg.) Donald comb. nud. = R. pygmaea 

haagei var. flavovirens (Backbg.) Backbg. = R. pygmaea f. flavovirens 

haagei var. flavovirens Frič nomen nudum = R. pygmaea f. flavovirens 

haagei var. orurensis (Backbg.) Donald comb. nud. = R. pygmaea 

haagei var. pectinata (Backbg.) Donald comb. nud. = R. pygmaea 

haagei var. salmonea Frič nomen nudum = R. pygmaea f. flavovirens 

haagei var. tricolor Frič nomen nudum = R. pygmaea f. flavovirens 

haefneriana Cullm. = R. pygmaea var. haefneriana 

hartlingiana Borg = ? 

hirsutissima Card. = R. hirsutissima 

iscayachensis Rausch comb. nud. = R. iscayachensis 

ithyacantha Card. = R. ithyacantha 

kesselringiana Cullm. = R. aureiflora f. rubriflora 

longiflora Frič nomen nudum = ? 

longiseta Backbg. nomen nudum = R. aureiflora 

mammillata Frič nomen nudum = ? 

mammilosa = ? 

melanotricha Frič nomen nudum = ? 

miniflora Frič nomen nudum = ? 

minimiflora Frič nomen nudum = ? 

morenoensis Rausch nomen nudum = ? 

mudanensis Rausch comb. nud. = R. mudanensis 

multiflora Frič nomen nudum = ? 

neopygmaea Backbg. = R. euanthema f. neopygmaea 

neosteinmannii (catalogue 1974 Uhlig) U1845 = R. pygmaea v. neosteinmannii 

nidulans Frič = ? 

57 

fricci -> 

fricii 

fricci -> 

fricii 

trivolor -> 

tricolor

nigra Frič nomen nudum = ? 

nigricans (Wessn.) Krainz. = R. ritteri var. nigricans 

nigricans var. peterseimii Frič = R. ritteri f. peterseimii 

nigriticentra Frič nomen nudum = ? 

orurensis (Backbg.) Backbg. = R. pygmaea 

padcayensis Rausch comb. nud. = R. pygmaea 

patericalyx Ritter comb. nud. = R. patericalyx 

patericalyx var. odontopetala Ritter comb. nud. = R. patericalyx 

paucipetala Frič nomen nudum = ? 

pectinata (Backbg.) Backbg. non Frič = R. pygmaea 

pectinata var. atrovirens (Backbg.) Backbg. = R. pygmaea v. atrovirens 

pectinata var. digitiformis (Backbg.) Backbg. = R. pygmaea 

pectinata var. gracilis Knize nomen nudum (KK970) 

pectinata var. neosteinmannii Backbg. = R. pygmaea 

pectinata var. paznaensis Knize nomen nudum (KK969) 

pectinata var. orurensis (Backbg.) Backbg. = R. pygmaea 

permutata Knize nomen nudum KK1046 

pygmaea (R. E. Fries) Krainz = R. pygmaea 

pygmaea var. flavovirens (Backbg.) Backbg. = R. pygmaea f. flavovirens 

pygmaea var. longispina nomen nudum 

puchella Frič nomen nudum = ? 

pumilla Frič nomen nudum = ? 

pyrimidalis Frič nomen nudum = ? 

rauschii Zecher comb. nud. = R. rauschii 

reichii Borg = Neoporteria reichii 

raulii Rausch comb. nud. = R. raulii 

ritteri (Wessn.) Krainz = R. ritteri 

ritteri var. pilifera (Frič) Backbg. = R. ritteri 

robusta Hort. nomen nudum = ? 

rosalbiflora Ritter comb. nud. = R. rosalbiflora 

roseiaurata Frič nomen nudum = ? 

rubelliflora Backbg. = reddish-orange flowering plant, may be a natural hybrid 

between the red flowered R. aureiflora f. rubriflora and the yellow flowered 

R. aureiflora = R. aureiflora f. rubelliflora 

rubriflora Backbg. = R. aureiflora f. rubriflora 

rubriflora var. blossfeldii (Werd.) Krainz = R. aureiflora f. rubriflora 

rubriflora var. nigrilongiseta (Wessn.) Krainz = R. aureiflora f. rubriflora 

sarothroides Werd. = R. aureiflora f. sarothroides 

schmiedcheniana (Kohl.) Krainz. = R. einsteinii f. schmiedcheniana 

schmiedcheniana var. einsteinii (Frič) Backbg. = R. einsteinii 

schmiedcheniana var. karreri (Frič) Backbg. = R. einsteinii 

schmiedcheniana var. rubriviridis Frič & Kreuzgr. ex Backbg. = 

R. einsteinii f. rubriviridis 

schmiedcheniana var. steineckei Frič & Kreuzgr. ex Backbg. = 

scoparia Frič nomen nudum = ? 

scoparia var. cylindrica Frič nomen nudum = ? 

semicolumnaris Frič nomen nudum = ? 

spiralisepala Schutz = cultivated form of R. aureiflora 

58 

steineckeri -> steineckei 

R. einsteinii f. steineckei 

pygmae -> 

pygmaea 

paznensis -> 

paznaensis 

pygmae -> 

pygmaea 

rubiflora 

-> rubriflora

spiralisepala Jajo ex Brederoo nomen nudum 

steinmannii (Solms-Laub.) Krainz = R. steinmannii 

steinmannii var. complanata Rausch nomen nudum 

steinmannii var. rotundiseta Rausch nomen nudum 

steinmannii var. rubriflora Rausch nomen nudum 

stellata Frič nomen nudum = ? 

struwelpeter Frič nomen nudum = ? 

sulcomammillata Frič nomen nudum = ? 

tarvitaensis Ritter comb. nud. = R. tarvitaensis 

tarvitensis = R. tarvitaensis 

turbiniformis Frič nomen nudum = ? 

uniclaricentra Frič nomen nudum = ? 

uninigricentra Frič nomen nudum = ? 

waltheriana Borg = R. spegazziniana 

Check list of Rebutia species 

The following is a list of specific and varietal names which have been used in 

connection with the genus Rebutia. A large number of these names are invalid, 

unfortunately many of them are still in use and have therefore been included. Please 

realise that this is not a complete check list as we are sure there are many other 

names and combinations which have appeared in obscure publications and which 

are not included. Nursery catalogues are a fruitful source of misnames and invalid 

combinations. As it is, the list already contains nearly 800 names and combinations. 

We do not pretend to know what are all the correct current names for many of 

the names in the following list for a variety of reasons. 

a) often living plants of many of the named ‘species’ are not in cultivation and in 

addition were sometimes inadequately described without photographs. This 

means that accurate assessment as to status or indeed relationship to a 

currently accepted name is extremely difficult and often impossible. 

b) names have sometimes been given to plants which after further field work 

appear to have been described from extreme geographical forms. They have 

never been recollected and probably never will be again (e.g. R. albipilosa) 

c) many of the names are names in the literature described without full 

description and so referal to the correct name is often impossible. 

d) a number of the names have not been published in accordance with the code of 

Botanical Nomenclature and have therefore to be excluded. 

The complex and superfluous nature of the names in this genus is admirably 

illustrated by the example of Rebutia senilis, where there are no less than 50 possible 

combinations. 

I Starred * names have accurate locational data and have been used in the 

compilation of the distribution maps. 

II The accepted species together with the names of plants which are reasonably 

distinct and identifiable are set in bold type. 

III All other names are set in italic type. 

59 

unigricentra -> 

uninigricentra

Check list of Rebutia Sensu Lato 

c.v. ‘alabaster’ (hybrid R. minuscula v. violaciflora f. 

kariusiana x R. c.v. stirnaldel’s meisterstuck.) 

*albiareolata Ritter (FR761) (1977) Kakt. u. a. Sukk. 28 78 

*albiflora Ritter & Buin. (FR766a) (1963) Taxon 12 29 

*albipilosa Ritter (FR754) (1963) Taxon 12 29 

albiseta Graessn. nomen nudum = ? aureiflora 

*albopectinata Rausch (1972) Kakt. u. a. Sukk. 23 236 

allegraiana Borg nomen nudum = senilis var. elegans 

almeyeri W. Heinr. = ? senilis f. stuemeri 

archibuingiana Ritter (1978) Ashingtonia 3 14 

arenacea Card. = Sulcorebutia arenacea (Card.) Ritter 

auranitida (Wessn.) Buin. & Donald (1937) Kakt. u. a. Sukk. 9 130 

" var. flaviflora Backbg. = auranitida 

" var. gracilis (Wessn.) Donald = auranitida f. gracilis 

" f. gracilis (Wessn.) Buin. & Donald (1937) Kakt. u. a. Sukk. 9 130 

aurantiaca hort. (catalogue 1974 Uhlig) U1343 = ? U1343 

*aureiflora Backbg. (1932) Deutsch Kakteenfreunde 124 

" var. albilongiseta (Backbg.) Marshall & Bock. comb. nud. = aureiflora 

" var. albiseta (Backbg.) Marshall & Bock. comb. nud. = aureiflora 

" f. boedeckeriana (Backbg.) Buin. & Donald (1934) Blatt. f. Kakteenf. 2 

" var. densispina Borg nomen nudum = aureiflora 

* " var. elegans (Backbg.) Buin. & Donald (1934) Blatt. f. Kakteenf. 9 

* " f. duursmaiana (Backbg.) Buin. & Donald (1934) Blatt. f. Kakteenf. 9 

" f. kesselringiana (Cullm.) Köhler = aureiflora f. rubriflora 

" var. longiseta (Backbg.) Marshall & Bock. comb. nud. = aureiflora 

" f. rubelliflora (Backbg.) Buin. & Donald (1935) Kaktus ABC. 247 

" var. rubriflora (Backbg.) Buin. & Donald 

* " f. rubriflora (Backbg.) Buin. & Donald (1935) Kaktus ABC. 247 

" var. sarothroides (Werd.) Buin. & Donald (1936) Blüh. Sukk. f. 106 

" var. sarothroides (Werd.) Buin. & Donald (1936) Blüh. Sukk. f. 106 

" var. subspec. aureiflora (Backbg.) Donald = aureiflora 

" var. subspec. aureiflora var. Blossfeldii (Werd.) Donald = 

aureiflora f. rubriflora 

" var. subspec. elegans (Backbg.) Donald = aureiflora var. elegans 

" var. subspec. elegans var. sarothroides (Werd.) Donald = 

aureiflora f. sarothroides 

aurescens hort. (catalogue 1974 Uhlig) U1344 = ? 

aureicantha hort. (catalogue 1974 Uhlig) U1756 = ? 

*aureispina Knize nomen nudum KK843 (also KK1694) 

beryllioides Donald nomen nudum = wessneriana var. beryllioides 

" var. densiseta nomen nudum = wessneriana var. beryllioides 

" var. longiseta nomen nudum = wessneriana var. beryllioides 

*binnewaldiana W. Heinr. = ? wessneriana 

60 

rebelliflora -> 

rubelliflora

inghamiana Borg nomen nudum = Lobivia binghamiana 

blossfeldii Werd. = aureiflora f. rubriflora 

blossfeldiana Werd. ex Backbg. nomen nudum = ? aureiflora f. rubriflora 

boedeckeriana (Backbg.) Marshall & Bock, nomen nudum = 

aureiflora f. boedeckeriana 

boliviensis hort. (catalogue 1974 Köhres) = ? 

*brachyantha (Wessn.) Buin. & Donald (1937) Kakt. u. a. Sukk. 207 

brachyantha Card. = Sulcorebutia breviflora (Card.) Backbg. 

breviflora Card. nomen Illeg. = Sulcorebutia breviflora (Card.) Backbg. 

*brunescens Rausch (R480) (1972) Kakt. u. a. Sukk. 23 235 

*brunneoradicata Ritter (FR1109) Kakt. u. a. Sukk. 23 98 

buiningiana Ritter nomen nudum = ? spinosissima 

*buiningiana Rausch (R511) (1972) Kakt. u. a. Sukk. 23 98 

cabratai Borg nomen nudum = Lobivia densispina 

caineana Card. = Sulcorebutia caineana (Card.) Donald 

cajasensis Ritter (FR1141) (1977) Succulenta 56 64 

calliantha Bew. nomen nudum 

calliantha Wessn. = wessneriana 

" var. breviseta Backbg. = wessneriana 

" var. beryllioides Buin. & Donald = wessneriana var. beryllioides 

" var. beryllioides f. breviseta (Backbg.) Buin. & Donald = wessneriana 

" f. hyalacantha Buin. & Donald = wessneriana 

" var. densiseta Bew. nomen nudum = krainziana 

" var. kariusiana Buin. & Donald = minuscula var. violaciflora f. kariusiana 

" var. krainziana (Kess.) Buin. & Donald = krainziana 

*camarguensis Rausch (R311) (1976) Succulenta 55 42 

*canacruzensis Rausch (1976) Kakt. u. a. Sukk. 27 49 = a form of pygmaea 

canaletas Knize nomen nudum KK1565 

candiae Card. = Sulcorebutia candiae (Card.) Buin. & Donald 

canigueralii Card. = Sulcorebutia canigueralii (Card.) Buin. & Donald 

caracarensis Card. = Sulcorebutia caracarensis (Card.) Donald. 

*carmeniana Rausch (1978) Kakt. u. a. Sukk. 29 105 

carminea Buin. = minuscula var. violaciflora 

christinae Rausch (R492a) (1975) Kakt. u. a. Sukk. 26 145 

chrysacantha Backbg. (1935) Kaktus ABC, 416 

" var. densispina nomen nudum 

" var. elegans (Backbg.) Backbg. = senilis var. elegans 

" var. iseliniana (Krainz) Donald comb. nud. = 

senilis var. iseliniana 

" var. kesselringiana (Bew.) Donald comb. nud. = 

senilis var. kesselringiana 

*cincinnata Rausch (R300) (1976) Kakt. u. a. Sukk. 27 4 

*cintiensis Ritter(FR938) (1978) Ashingtonia 2 206 

citricarpa Frič & Backbg. = xanthocarpa f. citricarpa 

" var. salmonea Frič nomen nudum = xanthocarpa f. salmonea 

*colorea Ritter (FR1106?) (1977) Kakt. u. a. Sukk. 28 78 

conoidea Wessn. = einsteinii f. conoidea 

" var. columnaris Wessn. = einsteinii f. columnaris 

corroana Card. = Sulcorebutia corroana (Card.) Don. & Bred. 

61 

spinossima -> 

spinosissima 

3111 -> 311

*costata Werd. (1934) Notizbl. Bot. Gait. u. Mus. Berlin 12 25 

* " f. eucalyptana (Backbg.) Buin. & Donald (1935) Kaktus ABC, 414 

" f. pilifera Buin. & Donald (1965) Cact. Succ. J. Gt. Brit. 27 40 

dasyphrissa Werd. = xanthocarpa f. dasyphrissa 

*deminuta (Web.) Br. & R. (1904) Bull. Mus. Hist. Nat. Paris, 386 

* " f. pseudominuscula (Speg.) Buin. & Donald (1905) Anal Mus. Nac. 

Buenos Aires Ser. III, 488 

*densipectinata Ritter (FR758) nomen nudum = ? form of R. albopectinata 

*diersiana Rausch (R631) (1975) Kakt. u. a. Sukk. 26 25 

" var. atrovirens Rausch (R633) (1975) Kakt. u. a. Sukk. 26 26 

" var. minor Rausch nomen nudum 

donaldiana Lau & Rowley (Lau 348) (1974) Ashingtonia 1 76 

durispina Frič nomen nudum = ? 

" var. violrosea Frič nomen nudum = ? 

duursmaiana (Backbg.) Marshall & Bock. comb. nud. = aureiflora f. duursmaiana 

*einsteinii Frič ex Backbg. (1956) Descr. Cact. Nov. 30 

" var. atrovirens Frič = ? einsteinii f. rubriviridis 

" var. columnaris (Wessn.) Buin. & Donald = einsteinii f. columnaris 

" f. karreri (Backbg.) Buin. & Donald = einsteinii 

" var. columnaris f. conoidea (Wessn.) Buin. & Donald = 

einsteinii f. conoidea 

* " f. columnaris (Wessn.) Buin. & Donald (1940) Beitr. Sukk. u. pflege 4 

" var. conoidea (Wessn.) Buin. & Donald = einsteinii f. conoidea 

" f. conoidea (Wessn.) Buin. & Donald (1940) Beitr. Sukk. u. pflege 3 

* " var. gonjianii (Kies.) Donald (1973) Bol. Soc. Argentina Bot. 15 132 

" var. rubriviridis (Frič & Kreuzgr. ex Backbg.) Buin. & Donald = 

einsteinii f. rubriviridis 

" f. rubriviridis (Frič & Kreuzgr. ex Backbg.) Donald (1956) 

Descr. Cact. Nov. 30 

* " f. schmiedcheniana (Kohl.) Buin. & Donald (1939) Beitr. Sukk. u. pflege 37 

" var. steineckei (Frič & Kreuzgr. ex. Backbg.) Buin. & Donald = 

einsteinii f. steineckei 

" f. steineckei (Frič & Kreuzgr. ex. Backbg.) Buin. & Donald (1956) 


elegans Backbg. = aureiflora var. elegans 

" var. gracilis Backbg. = aureiflora 

*eos Rausch (R333) (1972) Succulenta 51 2 

" var. roseiflora Rausch nomen nudum (R333a) 

espinosae Knize nomen nudum KK1518 = R. narvaesensis 

euanthema (Backbg.) Buin. & Donald (1956) Backbg. Descr. Cact. Nov. 30 

" f. fricii (Backbg.) Buin. & Donald (1956) Backbg. Descr. Cact. Nov. 30 

" f. neopygmaea (Backbg.) Buin. & Donald (1956) Backbg. 


" f. oculata (Werd.) Buin. & Donald (1935) Blüh. Kakt. u. a. Sukk. 99 

eucalyptana (Backbg.) Donald = costata f. eucalyptana (Backbg.) Buin. & Donald 

*fabrisii Rausch (R688) (1977) Kakt. und Sukk. 28 52 

" var. aureiflora Rausch (R687) (1977) Kakt. u. a. Sukk. 28 53 

famatimensis (Speg.) Speg. = Lobivia densispina 

62 

Hurt -> Hist 

steineckeri -> steineckei 

fametimensis -> famatimensis 

WRONG recombination!!!

*fiebigiana W. Heinr. = ? wessneriana 

*fiebrigii (Guerke) Br. & R. (1905) Notizbl. Bot. Gart. u. Mus. Berlin 4 183 

" var. densiseta (Cullm.) Oeser = fiebrigii f. densiseta 

" var. densiseta Cullm. 

*flavistyla Ritter (FR756) (1978) Ashingtonia 3 12 

friciana Donald & Cullm. nomen nudum = euanthema f. fricii 

fricii (Hort.) Backbg. nomen nudum = euanthema f. fricii 

*friedrichiana Rausch (R630) (R642) (1976) Succulenta 55 101 

*froehlichiana Rausch (R649) (1975) Succulenta 54 225 

fuauxiana (Backbg.) Backbg. = R. pygmaea f. fuauxiana 

*fulviseta Rausch (R583) (R319) (1970) Kakt. u. a. Sukk. 21 29 

" var. albispina Rausch nomen nudum (R495) 

*fusca Ritter (FR940) (1977) Kakt. u. a. Sukk. 28 78 

fusca Hort. nomen nudum 

gibbulosa Knize nomen nudum KK1563 

glanduliflora Card. nom. prov. = Sulcorebutia spec.? 

glaucescens Backbg. nomen nudum = ? 

glomeriseta Card. = Sulcorebutia glomeriseta (Card.) Ritter 

glomeriseta Card. = Sulcorebutia glomeriseta (Card.) Buin. & Donald 

gonjianii Kiesl. = einsteinii var. gonjianii 

*graciliflora Backbg. (1963) Descr. Cact. Nov. 3 13 

graciliflora var. borealis Ritter nomen nudum FR34la 

gracilis Borg nomen nudum Hybrid - intermediate form between R. senilis and 

R. xanthocarpa 

*gracilispina Ritter (FR1118) (1977) Kakt. u. a. Sukk. 28 76 

graessneri Frič nomen nudum = minuscula var. violaciflora 

grandiflora Backbg. non Frič = minuscula var. grandiflora 

x grandilacea Johnson hybrid (grandiflora x violaciflora) 

haageana Frič ex Backbg. = R. pygmaea 

haagei Frič & Schelle (1930) Kaktusar 88 = R. pygmaea 

haefneriana Cullm. = pygmaea f. haefneriana 

hahniana Werd. = ? ritteri var. nigricans f. hahniana 

hahnii -> hahnii Werd. = ? 

hahnii hahnii Frič. nomen nudum = ? 

haseltonii Card. = Sulcorebutia haseltonii (Card.) Donald 

heinrichiana hort. nomen nudum (catalogue 1977 Uhlig) = ? 

*heliosa Rausch (R314) (1970) Kakt. und Sukk. 21 30 

" var. cajasensis Donald (Lau401) (1979) Ashingtonia 5 144 

" var. condorensis Donald (Lau405) (1979) Ashingtonia 5 143 

heliosa x albiflora An interesting new hybrid 

hertrichiana comb. nud. = Lobivia hertrichiana 

*hirsutissima Card. (1971) Cact. Succ. J. Am. 43 244 

*hoffmannii Diers & Rausch (R521a) (1977) Kakt. u. a. Sukk. 28 105 

*huasiensis Rausch (R313) (1977) Kakt. u. a. Sukk. 28 25 

hyalacantha (Backbg.) Backbg. = wessneriana 

inflexiseta Card. = Sulcorebutia inflexiseta (Card.) Donald 

*iridescens Ritter (FR1434) (1977) Kakt. u. a. Sukk. 28 76 

*iscayachensis Rausch (R335b) (1977) Succulenta 56 1 

*ithyacantha (Card.) Diers. (1972) Kakt. u. a. Sukk. 23 12 

63 

densiseta -> 

densiseta 

freidrichiana -> 

friedrichiana 

hertricheana -> 

hertrichiana 

Sukkulenta -> 

Succulenta

*jujuyana Rausch (R220) (1973) Kakt. u. a. Sukk. 24 147 

kariusiana Wessn. Locality unknown - selected from 200 field collected plants of 

R. senilis and R. marsoneri imported by Uebelmann. (1963) Kakt. u. a. Sukk. 14 149 = 

minuscula v. violaciflora f. kariusiana 

*kieslingii Rausch (R694) (1977) Kakt. u. a. Sukk. 28 177 

knuthiana Backbg. (1935) Kaktus ABC 416 = minuscula var. violaciflora f. knuthiana 

*krainziana Kesselring (1948) Sukkulentenkunde II Jb. Schweiz Kakt. Ges. 23 

" var. breviseta (Backbg.) Donald (1935) = ? Hybrid 

krainziana x marsoneri Kaktus ABC 416 

" f. breviseta (Backbg.) Krainz & Haarm. 

" var. breviseta f. beryllioides (Buin. & Donald) Krainz & Haarm. = 

wessneriana var. beryllioides 

" var. hyalacantha (Backbg.) Buchheim = wessneriana 

" var. longiseta nomen nudum = wessneriana 

" var. wessneriana (Bew.) Krainz & Haarm. = wessneriana 

" var. wessneriana f. calliantha (Bew.) Krainz & Haarm. = wessneriana 

kruegeri (Card.) Backbg. = Sulcorebutia kruegeri (Card.) Ritter 

*kupperiana Bod (1932) Monats. D. K. Gesell. 276 

*kupperiana var. spiniflora Ritter (FR762b) (1977) Kakt. u. a. Sukk. 28 78 

*lanosiflora Ritter (FR1116) (1977) Kakt. u. a. Sukk. 28 77 

lasseniana hort. nomen nudum = ? 

*lauii Donald (Lau416) 

lateritia Knize nomen nudum KK1519 

*leucanthema Rausch (R305) (1975) Kakt. u. a. Sukk. 26 125 

" var. coccinifera Ritter (1977) Succulenta 56 63 

longiflora Frič nomen nudum = ? 

longispina Frič nomen nudum = ? 

lucida Frič nomen nudum = ? 

*mamillosa Rausch R302 (1972) Succulenta 51 69 

" var. australis Rausch (1977) Kakt. u. a. Sukk. 28 77 = ? var. or form of 

R. fulviseta 

" var. orientalis Ritter (1977) Kakt. u. a. Sukk. 28 77 = ? var. or form of 

R. spegazziniana 

maresii Borg nomen nudum = Lobivia densispina 

*margarethae Rausch (R521) (1972) Kakt. und Sukk. 23 4 

*marsoneri Werd. (1937) Kakteenkunde 2 

" var. albescens hort. nomen nudum 

" var. breviseta hort. nomen nudum 

" var. brevispina Donald nomen nudum 

" var. grandiflora Donald nomen nudum 

" var. sieperdaiana (Buin.) Donald = marsoneri f. sieperdaiana 

* " f. sieperdaiana (Buin.) Buin. & Donald (1941) Succulenta 23 15 

" var. spathulata hort. nomen nudum 

" f. spathulata Donald nomen nudum 

" c.v. spatula Donald 

" var. vatteri Donald nomen nudum 

maximiflora Frič nomen nudum = ? 

c.v. meisterstuck Hort. White flowered hybrid produced by Stirnadel. 

Rebutia spec x Echinopsis spec (polyancistra?) 

64 

krugeri -> 

kruegeri 

7626 -> 762b 

laterita -> 

lateritia 

Sukkulenta -> 

Succulenta 

Stirnaldel -> 

Stirnadel

melachlora Ritter & Buin. nomen nudum = leucanthema v. cocciniflora 

melanea Borg nomen nudum = Lobivia densispina ? 

*minuscula K. Schum. (1895) Monatsschte Kakteenkde. 5 102 

" f. bruneo-aurantiaca Simon nom. prov. = minuscula 

" var. citricarpa (Frič) Simon = xanthocarpa f. citricarpa 

" var. coerulescens (Backbg.) Simon = xanthocarpa f. coerulescens 

" var. grandiflora Krainz nomen nudum 

" var. grandiflora Marsh. nom. prov. 

* " var. grandiflora (Backbg.) Buin. & Donald 

" var. subspec. grandiflora (Backbg.) Donald = minuscula var. grandiflora 

" f. knuthiana (Backbg.) Buin. & Donald = minuscula var. 

violaciflora f. knuthiana 

" var. multiflora Frič nomen nudum = minuscula 

" f. kariusiana (Wessn.) Buin. & Donald = minuscula var. 

violaciflora f. kariusiana 

" var. salmonea (Frič) Simon = xanthocarpa f. salmonea 

" var. senilis (Backbg.) Simon = senilis 

" f. violaciflora (Backbg.) Buin. & Donald = minuscula var. violaciflora 

* " var. violaciflora (Backbg.) Buin. & Donald (1935) Blatt. f. Kakt. 8 

" var. violaciflora f. kariusiana (Wessn.) Donald (1963) u. a. Sukk. 14 149 

" var. violaciflora f. rosiflora nom. prov. 

" var. violaciflora f. knuthiana (Backbg.) Buin. & Donald (1935) Kaktus 

ABC 277 & 416 

" var. subspec. violaciflora (Backbg.) Donald = minuscula var. violaciflora 

" var. subspec. violaciflora f. kariusiana (Wessn.) Donald = minuscula var. 

violaciflora f. kariusiana 

*minutissima Ritter (FR1124) (1977) Kakt. u. a. Sukk. 28 78 

*mixta Ritter (FR1429) (1977) Kakt. u. a. Sukk. 28 76 

*mixticolor Ritter (FR1108) (1977) Kakt. u. a. Sukk. 27 169 

*mudanensis Rausch (R689) (1976) Kakt. u. a. Sukk. 27 169 

multicolor Ritter nomen nudum (FR1108) 

multiplex (Pfeiff.) v. Roeder (1938) Kakteenkunde 124 = ? Echinopsis multiplex 

multicostata hort. nomen nudum = ? 

muricata Frič nomen nudum = minuscula var. violaciflora 

*muscula Ritter & Thiele (FR753) (1963) Taxon 12 29 

" var. nivosa Knize comb. nud. KK1301 

*napina Ritter (FR942) nomen nudum (nom. prov.?) 

narvaecensis (Card.) Donald (1971) Cact. & Succ. J. Am. 43 245 

neopygmaea Backbg. = euanthema f. neopygmaea 

nicolaii Frič nomen nudum = ? (1932) Mollers Deutsch. Gartnerzeit. 47 422 

nidulans Borg nomen nudum = ? 

nigra Frič nomen nudum = ? 

nigricans (Wessn.) Backbg. = ritteri var. nigricans 

*nitida Ritter (FR769) (1978) Ashingtonia 3 14 

nivea nomen nudum = ? muscula 

nivosa Ritter nomen nudum = ? muscula 

*nogalensis Ritter (FR768) (1977) Kakt. und Sukk. 28 78 

oculata Werd. (1935) Blüh. Kakt. u. a. Sukk. 99 = euanthema f. oculata 

*odontopetala Ritter (FR757a) (1977) Kakt. u. a. Sukk. 28 76 

65 

c. -> v. 

coerulencens 

-> coerulescens 

1 -> 29

oderata Hort. nomen nudum = wessneriana 

odorata? 

orurensis Backbg. = pygmaea 

*padcayensis Rausch (R322) Succulenta 56 233 

pallida Rausch (1977) Succulenta 56 233 

*patericalyx Ritter (FR757) (1977) Kakt. u. a. Sukk. 28 74 

" var. odontopetala Ritter nomen nudum 

*pauciareolata Ritter (FR1121) (1977) Kakt. u. a. Sukk. 28 77 

*paucicostata Ritter (FR936) (1977) Kakt. u. a. Sukk. 28 77 

pectinata Backbg. = pygmaea 

" var. atrovirens = pygmaea var. atrovirens 

" var. digitiformis Backbg. = pygmaea 

" var. neosteinmannii Backbg. = pygmaea f. neosteinmannii 

" var. orurensis Backbg. = pygmaea 

periferia hort. nomen nudum = xanthocarpa (f. salmonea?) 

permutata Heinr. = wessneriana 

" var. gokrausei Heinr. = wessneriana 

peruviana hort. nomen nudum = marsoneri 

perplexa Donald (Lau 329a) (not narvaecense (Card. Donald) (1979) 

Ashingtonia 3 150 

petersainii Borg nomen nudum = ritteri 

petersonii hort. nomen nudum = minuscula 

pilayensis Knize nomen nudum (KK863) 

pilifera (Buin. & Donald) Rausch nomen nudum = costata f. pilifera 

pilosa Knize nomen nudum (KK858) 

polymorpha Card. = Sulcorebutia polymorpha (Card.) Backbg. 

*potosina Ritter (FR1428) (1977) Kakt. u. a. Sukk. 28 77 

prolifera Rausch nomen nudum = fabrisii 

pseudodeminuta Backbg. non Frič (1933) D.K.F. 7 

" f. albiseta (Backbg.) Buin. & Donald (1951) Cact. Succ. J. Amer. 23 82 

" var. longiseta nomen nudum 

" f. grandiflora (Backbg.) Buin. & Donald (1951) Cact. Succ. J. Amer. 23 82 

" f. rubrifilamentosa Buin. & Donald (1963) Sukkulentenkunde 7 102 

" f. schneideriana (Backbg.) Buin. & Donald (1951) 

Cact. Succ. J. Amer. 23 82 

" f. schumanniana (Backbg.) Buin. & Donald (1933) Der Kakteenfr. 7 

pseudoheliosa nomen nudum = albopectinata (Lau 401) 

pseudokrainziana nomen nudum 

pseudominuscula (Speg.) Br. & R. = deminuta f. pseudominuscula 

*pseudopygmaea Ritter (FR1122) nomen nudum 

*pulchella Rausch (1972) Kakt. u. a. Sukk. 23 340 

pulchera Card. = Sulcorebutia pulchera (Card.) Donald 

*pulvinosa Ritter & Buin. (FR766) (1963) Taxon 12 29 

pulvispina Knize nomen nudum KK1568 

pseudograessneri hort. (catalogue 1974 Uhlig) U844 = ? 

*pygmaea (R. E. Fries) Br. & R. (1905) Nov. Act. Soc. Sci. Upsala IV 120 

" f. atrovirens (Backbg.) Buin. & Donald (1935) Kaktus ABC 242 

" f. flavovirens (Backbg.) Buin. & Donald (1935) Kaktus ABC 243 

" f. fuauxiana (Backbg.) Buin. & Donald (1956) Descr. Cact. Nov. 131 

* " f. haefneriana (Cullm.) Buin. & Donald (1955) Kakt. u. a. Sukk. 6 

66

" f. neosteinmannii (Backbg.) Buin. & Donald (1956) Descr. Cact. Nov. 130 

" var. tupizensis Rausch nomen nudum (R676) 

*raulii Rausch (R485) (1980) Kakt. u. a. Sukk. 31 170 

*rauschii Zecher (R297) (1977) Kakt. u. a. Sukk. 28 73 

reichii Borg nomen nudum = ? Neoporteria reichii 

residua Knize nomen nudum (KK1517) 

rigidispina Frič nomen nudum = ? 

*ritteri (Wessn.) Buin. & Donald (1938) Beitr. z. Skde. u. pflege 3 

* " var. nigricans (Wessn.) Buin. & Donald (1938) Beitr. z. Sukk. u. Pfl. 51 

" var. nigricans f. hahniana Buin. & Donald (1965) Cact. Succ. J. Gt. Brit. 27 40 

" var. nigricans f. peterseimii Buin. & Donald (1965) 

Cact. Succ. J. Gt. Brit. 27 40 

" f. peterseimii Buin. & Donald = ritteri var. nigricans f. peterseimii 

" f. hahniana Buin. & Donald = ritteri var. nigricans f. hahniana 

ritteriana hort. (catalogue 1974 Andreae) = ? ritteri 

*robustispina Ritter (FR618) (1977) Succulenta 56 64 

" var. minor Ritter nomen nudum 

*rosalbiflora Ritter (FR1115) (1977) Kakt. u. a. Sukk. 28 76 

" var. amblypetala Ritter (FR1119) (1977) Kakt. u. a. Sukk. 28 76 

rubelliflora (Backbg.) Marshall & Bock. comb. nud. = aureiflora f. rubelliflora 

*rubiginosa Ritter (FR767) (1963) Taxon 12 29 

rubispina Graessner nomen nudum = ? 

rubrispina Backbg. = ? 

rubriflora (Backbg.) Marshall & Bock. comb. nud. = aureiflora f. rubriflora 

*rutiliflora Ritter (FR1113) (1977) Kakt. u. a. Sukk. 28 76 

sieperdaiana Buin. = marsoneri f. sieperdaiana 

*salpingantha Ritter (FR937) (1977) Kakt. u. a. Sukk. 28 77 

salmonea Frič non Backbg. nomen nudum catalogue name = ? 

sanguinea Ritter (1977) Succulenta 56 65 

" var. minor Ritter nomen nudum 

sarothroides Werd. = aureiflora f. sarothroides 

scarlatea Frič nomen nudum = minuscula 

" var. brevispina Frič nomen nudum = minuscula 

*schatzliana Rausch (R640) Kakt. u. a. Sukk. 26 244 

schmiedickeana (Kohl) Marsh. & Bock. comb. nud. = einsteinii f. schmiedcheniana 

schmiedcheniana var. karreri Backbg. = einsteinii 

" var. rubriviridis Frič = einsteinii f. rubriviridis 

" var. steineckei Frič = einsteinii f. steineckei 

steineckeri -> 

steineckei 

*senilis Backbg. (1932) D. Kaktfrd. 123 

" f. subspec. senilis Backbg. = senilis 

" f. subspec. senilis f. lilacinorosea (Backbg.) Buin. & Donald = 

senilis f. lilacinorosea 

" f. subspec. senilis f. stuemeri (Backbg.) Buin. & Donald = 

senilis f. stuemeri 

" f. subspec. chrysacantha (Backbg.) Donald = chrysacantha 

67 

Ffl -> Pfl 

sarothioides -> 

sarothroides 

scarlata -> 

scarlatea

" f. subspec. chrysacantha f. iseliniana (Krainz) Buin. & Donald = 


" f. subspec. chrysacantha f. kesselringiana (Backbg.) Buin. & Donald = 


" f. subspec. chrysacantha f. elegans (Backbg.) Buin. & Donald = 

senilis var. elegans 

" var. aurescens Backbg. = ? This taxon probably belongs with 

R. wessneriana rather than with R. senilis. In our experience 

it is self sterile and fits better with Subsection II rather than Subsection I. 

" f. blossfeldii nomen nudum = senilis 

" var. breviseta Backbg. = krainziana 

" f. breviseta Backbg. = krainziana 

" var. calva Frič nomen nudum = ? 

" var. cana Borg nomen nudum = ? 

" var. cana Backbg. = senilis 

" f. cana Backbg. ex Simon. = senilis 

" var. chrysacantha (Backbg.) Donald comb. nud. = chrysacantha 

" var. chrysacantha f. elegans (Backbg.) Buin. & Donald = 

senilis var. elegans 

" var. chrysacantha f. iseliniana (Krainz) Buin. & Donald = 


" var. chrysacantha f. kesselringiana (Bew.) Buin. & Donald = 


" var. citricarpa (Frič) Marsh = xanthocarpa f. citricarpa 

" var. colinsii hort. (catalogue 1974 Uhlig) U2667 = ? 

" var. dasyphrissa (Werd.) Marshall & Bock. comb. nud. = 

xanthocarpa f. dasyphrissa 

" var. dasyphrissa (Werd.) Donald = xanthocarpa f. dasyphrissa 

" var. gracilis nomen nudum = ? 

" var. elegans (Backbg.) Backbg. (1951) Cact. Succ. J. Amer. 23 83 

" var. erecta hort. nomen nudum = ? 

" var. hyalacantha Backbg. (Backbg.) Donald = wessneriana 

" var. hyalacantha f. hyalacantha (Backbg.) ex Simon = wessneriana 

" var. hyalacantha f. blossfeldiana Köhler nomen nudum = ? 

" var. iseliniana Krainz (1946) Schweizer Garten 284 

" var. iseliniana f. chrysacantha (Backbg.) Buin. & Donald = chrysacantha 

" var. iseliniana f. elegans (Backbg.) Buin. & Donald = senilis var. elegans 

" var. iseliniana f. kesselringiana (Bew.) Buin. & Donald = 


" var. kesselringiana Bew. (1947) Sukkulentenkunde 19 

" f. lilacinorosea (Backbg.) Buin. & Donald (1935) Kaktus ABC 416 

" var. lilacinorosea Backbg. = senilis f. lilacinorosea 

" var. longiflora nomen nudum = ? 

" var. longispina Frič nomen nudum = ? 

" var. luteirosea (Backbg.) Marsh = xanthocarpa var. luteirosea 

" var. pallidior (Backbg.) Donald nomen comb. subnud. = ? 

" var. pallidior (Backbg.) Donald comb. nud. = ? xanthocarpa 

" var. sieperdaiana (Buin.) Backbg. = marsoneri f. sieperdaiana 

68 

pallidor -> 

pallidior

" var. schieliana Bew. = senilis f. schieliana 

" f. schieliana (Bew.) Donald (1957) Kakt. u. a. Sukk. 8 105 

" var. semperflorens Poind. = ? 

" var. stuemeri Backbg. = senilis f. stuemeri 

" f. stuemeri (Backbg.) Buin. & Donald (1932) Deutsch Kakt. frd. 131 

" var. stuemeriana Backbg. = senilis f. stuemeri 

" var. violaciflora Backbg. nomen nudum = ? 

" var. xanthocarpa (Backbg.) Marsh = xanthocarpa 

singularis Ritter FR1423 (1978) Ashingtonia 3 12 

solisioides Knize nomen nudum = heliosa var. condorensis 

*spegazziniana Backbg. (1934) Blätter, f. Kakteen forschg. 2 

" atroviridis (Backbg.) Backbg. (1951) Cact. Succ. J. Am. 23 82 

*sphaerica Ritter (FR1140) nomen nudum 

*spinosissima Backbg. (1935) Blatt. f. Kakteenf. 1935-8 

" var. brunispina Backbg. nomen nudum = spinosissima 

" var. aurea Rausch nomen nudum (R318) 

" var. similis Frič nomen nudum = spinosissima 

spiralisepala Jajo nomen nudum 

*steinmannii (Solms-Laub.) Br. & R. (1907) Bt. Zeit. 65 153 (Section I Aylostera!) 

" var. cincinnata Rausch nomen nudum (R300) = ? 

" var. nigricans Wessn. = ritteri var. nigricans 

" var. pilifera (Buin. & Donald) Rausch comb. nud. = costata f. pilifera 

*supthutiana Rausch (R629) (1976) Kakt. u. a. Sukk. 27 121 

steinbachii Werd. = Sulcorebutia steinbachii (Werd.) Backbg. 

" rosiflora Backbg. = Sulcorebutia steinbachii v. rosiflora 

" var. violaciflora Backbg. = Sulcorebutia steinbachii v. violaciflora 

" var. violacifera Backbg. = Sulcorebutia steinbachii v. violacifera 

steineckei Frič nomen nudum (1932) Mollers Deutsch Gartner Zeit. 47 422 = ? 

*tamboensis Ritter (FR1142) (1978) Ashingtonia 2 207 

taratensis Card. = Sulcorebutia taratensis (Card.) Buin. & Donald 

*tarijensis Rausch (R87) (1975) Kakt. u. a. Sukk. 26 195 

*tarvitaensis Ritter (FR773) (1977) Kakt. u. a. Sukk. 28 78 

tiraquensis Card. = Sulcorebutia tiraquensis (Card.) Ritter 

" var. longiseta Card. = Sulcorebutia tiraquensis (Card.) Donald 

*torquata Ritter & Buin. (FR1117) (1977) Succulenta 56 63 

totorensis Card. = Sulcorebutia totorensis (Card.) Ritter 

*tropaeolipicta Ritter (FR1114) (1977) Kakt. u. a. Sukk. 28 78 

tuberculato-chrysacantha Card. = Sulcorebutia tuberculato-chrysacantha 

(Card.) Bred. & Donald 

*tuberosa Ritter (FR770) (1963) Taxon 12 28 

tunariensis Card. = Sulcorebutia tunariensis (Card.) Buin. & Donald 

turbinata hort. nomen nudum Winter catalogue name = ? wessneriana 

*vallegrandensis Card. (1970) Cact. Succ. J. Amer. 42 35 

violacea Frič hort. nomen nudum = xanthocarpa var. violaciflora 

" var. albispina Frič nomen nudum = ? 

" var. densispina Frič nomen nudum = ? 

" var. paucipetala Frič nomen nudum = ? 

" var. rosea Frič nomen nudum = ? 

69 

schieleana -> 

schieliana 

semperlorens -> 

semperflorens 

Sols -> 

Solms 

200 -> 300 

steineckeri -> 

steineckei 

tropaeolipitica -> 

tropaeolipicta

" var. stellata Frič nomen nudum = ? 

*violascens Ritter (FR352) (1977) Kakt. u. a. Sukk. 28 76 

violaciflora Backbg. = minuscula var. violaciflora 

" var. brunispina hort. (catalogue 1974 Uhlig) U1175 

" var. carminea (Burning) Donald = minuscula var. violaciflora 

" var. densispina nomen nudum = minuscula var. violaciflora 

" var. graessneri nomen nudum = minuscula var. violaciflora 

" var. knuthiana (Backbg.) Donald comb. nud. = 

minuscula var. violaciflora f. knuthiana 

" var. luteispina (Backbg.) Borg hort. nomen nudum = 

minuscula var. violaciflora 

" var. rosea hort. (catalogue 1974 Uhlig) Ul173 

violbrunispina Frič nomen nudum = ? 

violsalmonea Frič nomen nudum = ? 

vizcarrae Card. = Sulcorebutia vizcarrae (Card.) Donald 

volcanensis hort. (1974 catalogue Andraea) = ? 

*vulpina Ritter (FR939) (1977) Succulenta 56 66 

waltheriana Backbg. nomen nudum = ? spegazziniana 

*wessneriana Bew. (1948) Sukkulentenkunde Jahrb. Schweiz. Kakt. Ges. 2 24 

" var. beryllioides Buin. & Donald 

" var. calliantha (Bew.) Krainz = wessneriana 

" var. densiseta nomen nudum = krainziana 

" var. krainziana (Kess.) Buin. & Donald = krainziana 

" var. permutata (Heinr.) Buin. & Donald = wessneriana 

" subspec. beryllioides Buin. & Donald = wessneriana var. beryllioides 

" subspec. wessneriana f. calliantha (Bew.) Buin. & Donald = 

wessneriana 

" subspec. wessneriana var. gokrausei (Heinr.) Donald = wessneriana gokausei -> 

" subspec. wessneriana var. gokrausei f. permutata (Heinr.) Donald = gokrausei 

wessneriana 

c.v. 'Ruby' Donald 

c.v. 'Turbine' Donald 

winterae hort. nomen nudum = ? 

winteriana hort. nomen nudum = ? 

*xanthocarpa Backbg. (1932)D.K.F 131 

" var. citricarpa Frič ex Backbg. = f. citricarpa 

" f. citricarpa (Frič ex Backbg.) Buin. & Donald (1951) Cact. & Succ. 

J Amer. 23 83 

" var. coerulescens (Backbg.) Buin. & Donald = f. coerulescens 

" f. coerulescens (Backbg.) Buin. & Donald (1956) Backbg. Descr. Cact. 

Nov. 31 

" var. dasyphrissa (Werd.) Backbg. = f. dasyphrissa 

" f. dasyphrissa (Werd.) Buin. & Donald (1935) Blüh. Kakt. u. a. Sukk. 103 

" var. elegans Backbg. = senilis var. elegans 

" f. graciliflora (Backbg.) Donald (1963) Backbg. Descr. Cact. Nov. 3 13 

" var. kesselringiana comb. nud. = senilis var. kesselringiana 

" var. lilacinorosea nomen nudum = f. violaciflora 

" var. luteirosea Backbg. (1951) Cact. Succ. J. Amer. 23 83 

" var. magentaflora Hort. nomen nudum = f. violaciflora 

70 

Jakrb. Schwiez -> 

Jahrb. Schweiz

" var. pallidior Backbg. = ? xanthocarpa 

" var. ruficeps hort. nomen nudum = ? 

" var. salmonea Frič ex Backbg. = f. salmonea 

" f. salmonea (Frič ex Backbg.) Buin. & Donald (1951) Cact. Succ. ]. Amer. 

23 83 

" f. sanguinea nomen nudum = ? 

" var. violaciflora (Backbg.) Backbg. = f. violaciflora 

" f. violaciflora (Backbg.) Buin. & Donald (1956) Backbg. Descr. Cact. 

Nov. 31 

zavaletae Card. = Sulcorebutia zavaletae (Card.) Backbg. 

*zecheri Rausch (R650) (1977) Succulenta 56 29 

Digitorebutia nazarenoensis Rausch. This new species was described by Walter 

Rausch in 1979. As it has not been described as a Rebutia the following combination 

has been made:- 

Rebutia nazarenoensis (Rausch). Fearn & Pearcy comb. nov. 

Digitorebutia nazarenoensis Rausch (1979) Succulenta 58 185. 

Field Data 

The following lists of field numbers are those which have been assigned to 

Rebutia plants collected by Friedrich Ritter, Walter Rausch, Alfred Lau and Karel 

Knize, all of whom have collected extensively in Bolivia and Argentina. 

Friedrich Ritter Field Numbers 

(All these field numbers are prefixed by the letters FR) 

57 Digitorebutia haagei 

57a " brachyantha (pygmaea?) 

57b " haagei form 

58 Rebutia calliantha 

83 fiebrigii densiseta (nivosa) 

84 " fiebrigii 

84a " fiebrigii var. 

84b " fiebrigii var. vulpes 

337 " spec. (brachyantha?) 

339 Mediolobivia orurensis 

340 " eucalyptana 

341 " haefneriana steinmannii 

341a Rebutia (mamillosa v. australis) graciliflora v. borealis 

341b " mamillosa v. orientalis 

351 " haagei steinmannii 

352 " (violascens) haefneriana 

390 " fiebrigii v. densiseta 

402 Mediolobivia pilifera 

404 Aylostera spegazzinii v. atroviridis 

405 Mediolobivia sarothroides 

406 Rebutia euanthema 

407 Mediolobivia aureiflora 

71 

pallidor -> 

pallidior

618 Aylostera robustispina 

622 " spec. 

752 " pseudodeminuta 

753 " muscula 

754 " albipilosa 

755 " maxima 

756 " flavistyla 

757 " patericalyx 

757a " var. odontopetala 

758 " densipectinata (dark form) 

759 " densipectinata (pale form) 

760 " sanguinea spegazziniana 

760a " sanguinea var. minor 

761 " albiareolata 

762 Rebutia kupperiana 

762a " " form 

762b " " var. spiniflora 

763 " robustispina 

763a " " var. minor 

765 " spec. 

766 Aylostera pulvinosa 

766a " albiflora 

767 " rubiginosa 

768 Rebutia nogalensis 

769 " nitida 

770 " tuberosa 

771 " spec. 

772 " spec. 

773 " tarvitaensis 

935 " melachlora 

936 " ritteri v. paucicostata 

937 " salpingantha costata 

938 " cintiensis 

939 " vulpina 

939a " vulpina var. 

940 " fusca 

941 " senilis 

941a " spec. 

942 Rebutia napina 

1101 " gracilis 

1106 " colorea 

1106a " colorea var. 

1107 " pygmaea 

1108 " mixticolor 

1109 " brunneoradicata 

1110 " mamillosa var. australis - grandiflora 

1113 " rutiliflora 

1113a " spec. 

1114 " tropaeolipicta 

72 

sulcorebutia verticillacantha! 

Hymenorabutia quinesensis!

1115 " rosalbiflora 

1115a " spec. 

1116 " lanosiflora 

1117 " torquata 

1118 " gracilispina 

1118a " gracilispina var. 

1119 " rosalbiflora v. amblypetala 

1120 " spec. 

1121 " pauciareolata 

1122 " pseudopygmaea 

1123 " ritteri 

1124 " minutissima 

1130 " spec. 

1138 " mamillosa v. orientalis 

1138a " mamillosa var. 

1139 " poecilantha 

1140 " sphaerica 

1141 Mediolobivia cajasensis 

1142 Rebutia tamboensis 

1142a " pseudodeminuta 

1142b " pseudodeminuta form 

1423 " singularis 

1428 " potosina 

1429 " mixta 

1434 " iridescens 

Rebutias collected by Alfred Lau 

(All these field numbers are prefixed by the word LAU) 

323 R. fiebrigii forma nova. 2700m Mina Asientos, Cochabamba. 

329 R. fiebrigii var. densiseta. 2600m Mina Asientos, Cochabamba. 

329a R. perplexa 

346 R. fiebrigii form, shorter and darker centrals. 2400m Pucara-La Higuera, 

Santa Cruz. 

346a R. spinosissima var. nova. 2400m Pucara-La Higuera, Santa Cruz. 

348 R. donaldiana. 2500m Pucara-Vallegrande, Santa Cruz. 

348a R. fiebrigii. 2500m Pucara-Vallegrande, Santa Cruz. 

350 R. ithyacantha. 2600m Pucara-Vallegrande, Santa Cruz. 

351 R. vallegrandensis. 2100m Pucara-Vallegrande, Santa Cruz. 

353 R. vallegrandensis. 2600m Pucara-Vallegrande Pass, Santa Cruz. 

383 R. brunescens. 3500m Tarabuco, Chuquisaca. 

393 R. fiebrigii form. 2900m. Calle Calle Mts., Chuquisaca. 

401 R. albopectinata. 2450m Condor Pass, Tarija. 

402 R. rubiginosa. 1600m Narvaez, Tarija. 

402a R. fiebrigii form. 1600m Narvaez, Tarija. 

404 R. buiningiana Ritt. nomen nudum (R. spinosissima?) 2500m Cara del Diablo, 

Tarija. 

405 R. albopectinata form. 2400m Cajas Pass, Tarija. 

73 

Monvillea! 

paecilantha -> poecilantha 

tamboenisis -> 

tamboensis 

narvaecensis -> perplexa

407 R. rubiginosa form. 2400m. 10km. W. Narvaez, Tarija. 

409 R. spec. nova. 3500m Tarija to Iscayachi. 

410 R. tuberosa. 3500m Tarija to Iscayachi. 

411 R. christinae. Tarija to Iscayachi. 

411a R. spegazziniana var. atroviridis 3000m Tarija to Iscayachi. 

412 R. spegazziniana var. nova. Road to Cajas, Tarija. 

413 R. padcayensis. Cara del Diablo, Tarija. 

415 = 405 R. albopectinata. 3200m Iscayachi, Tarija. 

416 R. lauii. 2400m Cajas Pass, Tarija. 

422a R. spec. nova. 3350m Otavi-Camargo, Chuquisaca. 

422b R. spec. nova. 3350m Otavi-Camargo, Chuquisaca. 

424 R. spec. 3300m Camargo, Chuquisaca. 

431 R. pygmaea. 3800m El Aguilar, Jujuy. 

442 R. minuscula var. 1500m Sierra Medina, Tucuman Province, 

476 R. einsteinii var. gonjianii 3500m Quebrada del Toro, Jujuy. 

477 R. einsteinii var. gonjianii 3200m Quebrada del Toro, Jujuy. 

519 R. haagei. 3100m Humahuaca, Jujuy. 

520 R. spec, (similar to R. costata and R. fuauxiana). 3000m East of Volcan, Jujuy. 

522 R. pseudodeminuta. 2700m East of Volcan, Jujuy. 

533 R. spec. nova (possibly R. auranitida var. gracilis). 2700m above Tastil, Salta. 

541 R. spec.(nigricans?) 3800m Tafne, Jujuy. 

541a R. spec. (costata?) 3600m Tafne, Jujuy. 

541b R. eos. 3600m Tafne, Jujuy. 

541c R. eos var. nova? 3600m. Tafne, Jujuy. 

544 R. margarethae. 2100-3000m Santa Victoria, Salta. 

544a R. margarethae. 2400m Santa Victoria, Salta. 

545 R. jujuyensis. 2300m Santa Victoria, Salta. 

546 R. spec. nova. 2200m Santa Victoria, Salta. 

546a R. spec. nova. 2200m Santa Victoria, Salta. 

547 R. spegazziniana v. atroviridis 2300-3000m Santa Victoria, Salta. 

550 R. margarethae. 2800m Road from La Quiaca, Santa Victoria Pass, Salta. 

550a R. pseudodeminuta form? 2800m Road from La Quiaca, Santa Victoria Pass, 

Salta. 

554 R. margarethae. 3500m Road from La Quiaca, Santa Victoria Pass, Salta. 

557 R. wessneriana v. beryllioides. 2400m Leon, Jujuy Province. 

560 R. xanthocarpa v. lilacinorosea. 10km North West of Antilla, Salta. 

561 R. pseudodeminuta form. 10km North West of Antilla, Salta. 

Walter Rausch Field Numbers 

(All these field numbers are prefixed by the letter R) 

1 Rebutia xanthocarpa 

11 Aylostera pseudominuscula 

14 Mediolobivia nigricans var. Piedra de Molinos 

35 " haagei 

67 Aylostera ithyacantha 

71 Mediolobivia steinmannii var. 

87 " tarijensis (Ritter?) 

74 

R. spegazzinniana -> 

Sulco. tarijensis! 

spegazinniana -> 

spegazziniana 

Aquilar -> 

Aguilar 

Quebrado -> 

Quebrada 

steimannii -> 

steinmannii

88 Aylostera robustispina 

89 " fiebrigii v. densiseta 

91 Mediolobivia spec. 

158 " aureiflora 

162 " nigricans 

163 " einsteinii v. atrovirens (viridis?) 

167 Rebutia senilis 

208 Mediolobivia steinmannii var. 

208a " haefneriana 

210 " orurensis 

214 " euanthema 

220 Aylostera sordida/jujuyana 

234 Rebutia wessneriana 

274 Aylostera vallegrandensis 

295 Rebutia rosalbiflora Potosi 

295a " spec. Iscayache 

296 Mediolobivia steinmannii v. pilifera 

297 " rauschii 

300 " steinmannii v. cincinnata 

301 " pectinata (yellow) 

302 Rebutia mammillosa 

304 Mediolobivia pectinata (white) 

305 Rebutia leucanthema 

311 Aylostera umbraculiforma = camarguensis 

312 Mediolobivia albopectinata 

313 Rebutia huasiensis 

314 Aylostera heliosa 

317 " spinosissima 

318 " var. aurea? var. buiningiana? 

319 " fulviseta 

320 " lampromeliana = pulchella 

321 " fiebrigii v. castanea 

322 " padcayensis 

324 " kupperiana 

333 Mediolobivia eos 

333a " eos var. roseiflora 

334 " steinmannii v. rotundipetala 

335 " pygmaea (Villazon) 

335a " pygmaea (Iscayachi) 

335b " iscayachensis (Corda) 

454 " eucalyptana 

480 Rebutia brunescens (Tarabuco?) 

484 Mediolobivia mudanensis 

485 " rauhii (Rio Honda) 

486 " steinmannii v. complanata (Rio Honda) 

492 Aylostera graciliflora (Iscayachi) 

492a Rebutia christinae (Santa Victoria) 

493 " brunescens var. 

494 Mediolobivia steinmannii v. rubriflora 

75 

camplanata -> 

complanata 

Iscaychi -> 

Iscayachi 

rubiflora -> 

rubriflora

495 Rebutia fulviseta v. albispina 

496 Aylostera spegazziniana 

501 Mediolobivia haagei 

502 " haagei 

503 Aylostera fiebrigii 

503a " fiebrigii f. brown spine 

506 Mediolobivia pygmaea var. 

507 " haagei var. (Santa Victoria-Purmamarca) 

507a " haagei var. 

508 " costata 

508a " pygmaea v. longispina 

509 " einsteinii 

511 Rebutia buiningiana 

515 Mediolobivia haefneriana 

518 Rebutia margarethae 

520 Mediolobivia ritteri 

521 Rebutia margarethae 

521a " hoffmannii 

522 Mediolobivia morenoensis 

576 " pygmaea 

577 " nigricans 

578 Rebutia einsteinii v. gonjianii 

579 Mediolobivia pygmaea 

583 Rebutia fulviseta 

597 " pulchella var. 

629 " supthutiana 

630 Rebutia friedrichiana (pygmaea?) 

631 " diersiana 

632 " haefneriana 

633 " diersiana var. atrovirens 

640 " schatzliana 

641 " schatzliana var. 

642 " friedrichiana 

643 " spinosissima 

644 " steinmannii var. 

646 Mediolobivia friedrichiana 

649 Rebutia froehlichiana 

650 Aylostera zecheri 

654 " pseudominuscula var. 

655 " pseudominuscula 

660 Rebutia violascens 

661 " senilis 

676 " pygmaea v. tupizensis 

679 Aylostera pseudodeminuta var. 

680 Rebutia aureiflora var. duursmaiana 

681 " violaciflora 

687 " fabrisii var. aureiflora 

688 " fabrisii 

689 Mediolobivia mudanensis 

76 

hoffmanni -> 

hoffmannii 

gonjiana -> 

gonjianii 

frohlichiana -> 

froehlichiana 

duirsmaiana -> 

duursmaiana

690 Rebutia pseudominuscula (carmeniana) 

694 " kieslingii 

697 " pseudodeminuta 

700 " oculata 

Karel Knize Field Numbers 

(All these numbers are prefixed by the letters KK) 

597 Rebutia senilis f. Huahata, 2200m, Arg. 

598 " pseudominuscula. Catamarca, 2800m, Arg. 

637 Mediolobivia pectinata. Oruro, 4000m, Bolivia. 

797 " haefneriana. Oruro, Capulla, 3000m, Bolivia. 

798 " pectinata var. Oruro, Machacamarca, 4000m, Bolivia. 

839 Rebutia albipilosa. Tarcia, Tarija, 2800m, Bolivia. 

840 " violaciflora. Salta, Escoipe, 3100m, Arg. 

841 " narvaecensis f. Narvaez, Tarija, 2300m, Bolivia. 

842 " muscula. Piedra, Larga, 2300m, Bolivia. 

843 " aureispina. Jucanas, Tarija, 3000m, Bolivia. 

844 " heliosa. Jucanas, 3000m, Bolivia. 

845 " senilis f. Salta, Escoipe, 3200m, Arg. 

846 " pseudodeminuta. Piedra Larga, Tarija, 2800m, Bolivia, 

847 " deminuta f. Narvaez, Tarija, 3000m, Bolivia. 

848 " densiseta? Jucanas, Tarija, 3000m, Bolivia. 

849 " densipectinata. Jucanas, Tarija, 3000m, Bolivia 

852 " albopectinata. Sama, Tarija, 3800m, Bolivia. 

853 " fiebrigii v. densiseta. Iscayache, Tarija, 3500m, Bolivia. 

854 Mediolobivia conoidea. Iscayache, Tarija, 3000m, Bolivia 

855 Rebutia fiebrigii. El Molle, Tarija, 3000m, Bolivia. 

856 " spegazzinii. Iscayache, 3500m, Bolivia. 

858 " pilosa. Jucanas, Las Cajas, 2800m, Bolivia. 

859 " ritteri/tuberosa. Sama, Tarija, 3500m, Bolivia. 

860 " buiningiana. Las Cajas, Tarija, 2800m, Bolivia. 

861 " rubiginosa. San Antonio, Iscayache, 3200m, Bolivia. 

862 " tuberosa. Sama, Tarija, 3500m, Bolivia. 

863 " pilayensis. El Nogal, Tarija, 2500m, Bolivia. 

871 Mediolobivia euanthema. Sama, Iscayache, 4300m, Bolivia. 

872 " auranitida? Sama, Iscayache, 4300m, Bolivia. 

873 " auranitida v. gracilis. Sama, Tarija, 4200m, Bolivia. 

968 " orurensis. Oruro, Paria, 4100m, Bolivia. 

969 " pectinata. v. paznaensis. Pazna, 4100m, Bolivia. 

970 " pectinata. v. gracilis. Pazna, 4300m, Bolivia. 

971 " eucalyptana. Eucalyptos, 4100m, Bolivia. 

972 " pectinata v. challa. Challapata, 4000m, Bolivia. 

973 " euanthema v. oculata. Challapata, 4100m, Bolivia. 

974 " pectinata v. Poopo, 4200m, Bolivia. 

978 " spec. Huari, 4000m, Bolivia. 

1046 " permutata? 

77 

300m -> 

3000m 

narvaezensis -> 

narvaecensis 

pseudominuta -> 

pseudodeminuta 

300m -> 

3000m 

paznensis. -> 

paznaensis.

1052 Rebutia ithyacantha. La Cueva, Tarija, 2500m, Bolivia. 

1096 " violaciflora v. knuthiana. Salta, El Aguilar, 2800m, Arg. 

1150 " narvaecensis. Piedra Larga, 2500m, Bolivia. 

1151 " muscula v. nivosa. Piedra Larga, 2600m, Bolivia. 

1152 " spec. 

1232 Mediolobivia ritteri. Iscayache, 3800m, Bolivia. 

1242 Rebutia grandiflora f. Salta, Escoipe, 3300m, Arg. 

1243 " senilis f. Salta, Iscayache, 3500m, Arg. 

1244 " xanthocarpa. Salta, El Aguilar, 3800m, Arg. 

1301 " muscula v. nivosa. Narvaez, Tarija, 3000m, Bolivia. 

1302 " narvaecensis. Narvaez, Tarija, 2800m, Bolivia. 

1464 Mediolobivia elegans. Salta, 3800m, Arg. 

1465 " pygmaea. El Aguilar, 4000m, Arg. 

1466 " nigricans. Salta, 3800m, Arg. 

1467 " pectinata v. digitiformis. Escoipe, 3800m, Arg. 

1468 " auranitida var. Sierra Padjoja, 4100m, Bolivia. 

1469 " auranitida var. Sierra Padjoja, 4100m, Bolivia. 

1516 Rebutia cintiensis 

1517 " residua 

1518 " espinosae 

1519 " lateritia 

1563 " gibbulosa 

1565 " canaletas 

1568 " pulvispina 

1686 Mediolobivia iscayachensis 

1694 Rebutia aureispina 

1695 " potosina 

Bibliography 

The following is a list of the most important publications 

concerning the genus Rebutia 

Backeberg C. (1932) Der Kakteenfreund 

Backeberg C. (1951) Some Results of Twenty Years of Cactus Research. 

Cactus Succ. J. Amer. 23 81-83 

Backeberg C. (1959) Die Cactaceae Vol. II Fischer Verlag, Jena. 

Backeberg C. (1961) Die Cactaceae Vol. VI Fischer Verlag, Jena. 

Backeberg C. (1966) Kakteen Lexikon Fischer Verlag, Jena. 

Backeberg C. (1977) Cactus Lexicon Blandford Press, Poole. 

Backeberg C. & Knuth F.M. (1935) Kaktus ABC Gyldendalske Boghandel, 

Denmark. 

Berger A. (1929) Kakteen, Stuttgart 

Bertrand A. (1951) Genre 66 Rebutia K. Sch. emend A. Bertrand. Cactus (Paris) 28 53 

Brederoo A.J. (1955) Rebutiae Succulenta, 36 

Brederoo A.J. (1956) Aylostera Succulenta, 56 

Brederoo A.J. (1956) Mediolobivia Succulenta, 92 

Brederoo A.J. (1957) Digitorebutia Succulenta, 53 

Brederoo A.J. (1957) Mediolobivia spiralisepala Jajo Succulenta, 92 

78 

Slata -> 

Salta 

Piedro -> 

Piedra 

narvaezensis. -> narvaecensis. 

narvaezensis. -> narvaecensis. 

laterita -> 

lateritia

Britten -> 

Britton 

Brederoo A.J. (1959) Cylindrorebutia Succulenta, 121 

Brinkman K.H. (1976) Die Gattung Sulcorebutia Kakt. u. a. Sukk. 

Britton N.L. & Rose J.N. (1923) The Cactaceae 1st Ed. Carnegie Institute, 

Washington Publication No. 248 

Borg J. (1937) Cacti. Macmillan, London 

Buining A.F.H. & Donald J.D. (1963) Die Gattung Rebutia Sukkulentenkunde Jb. 

Schweiz Kakt. Ges. 97 

Buxbaum F. (1938) Was ist Rebutia, was Aylostera? Beitr. Sukk. u. Pflege, 69. 

Buxbaum F. (1958) Cactus Culture based on Biology. Blandford, London 

Buxbaum F. (1967) Rebutia, Krainz Die Kakteen 37 

Donald J.D. (1950) An introduction to some new genera and subgenera proposed 

by Backeberg. Natn. Cactus Succ. J. 5 67 

Donald J.D. (1955) A Rebutia Reference and Synonymy Brit. Sect. IOS Publ. No. 2. 

Donald J.D. (1956) Rebutiae, Succulenta 84 

Donald J.D. (1957) Guide to the Rebutiae I The Nomenclature of the Rebutiae, 

Natn. Cactus Succ. J. 12 3 

Donald J.D. (1957) Guide to the Rebutiae II Key to the Rebutiae, Natn. Cactus Succ. 

J. 12 9 

Donald J.D. (1957) Notes and observations on New Cacti, I Rebutia krainziana 

and its varieties, Natn. Cactus Succ. J. 12 27 

Donald J.D. (1957) Was ist Rebutia violaciflora und was Rebutia carminea, 

Kakt. u. a. Sukk. 8 24 

Donald J.D. (1959) New plants Nr. 2 Rebutia calliantha and Rebutia wessneriana 

Natn. Cactus Succ. J. 14 4 

Donald J.D. (1973) Rebutia albopectinata Ashingtonia 1 23 

Donald J.D. (1974) The Rebutias From the Lau expeditions to Bolivia and Argentina, 

Ashingtonia 1 64 

Donald J.D. (1976) Studies over Rebutia, Echinopsis en Lobivia, Succulenta 55 235 

Donald J.D. (1974-1978) The Classification of the Rebutias, Ashingtonia 1-3 

Donald J.D. (1977) Echinopsis, Lobivia, Rebutia. Where to draw the line? 

Cact. Succ. J. Gt. Brit. 39 11 

Donald J.D. (1977) Further observations on the Rebutia, Sulcorebutia, Weingartia 

problem, IOS Bulletin 3 167 

Donald J.D. & Brederoo A.J. (1978) The systematics of Rebutia Pt. 7. Ashingtonia 3 

Fearn B. (1974) An investigation into the effect of temperature on the seed 

germination of nine species of Cacti using thermal gradient bars. 

Cactus Succ. J. Amer. 46 215 

Fearn B. (1977) An investigation into the effect of age on the germination potential 

of seeds of 600 species of Cacti. Excelsa 7 103 

Fritz G. (1979) Rebutia albopectinata Rausch. Kakt. u. a. Sukk. 30 12 

Frits -> 

Fritz G. (1980) Nochmals zu Rebutia spec. Lau 401/405. Kakt. u. a. Sukk. 31 81 

Fritz 

Glass C. & Foster R. (1980) Whats New. Cactus Succ. J. Am. 52 164 

Goemas W. Maretlmans L. & Wacker Fde. (1959) Rebutia, Succulenta 38 30 & 53 

Rebutian -> 

Köhler von U. (1957) Die rosaviolett-Blühenden Rebutien, Kakt. u. a. Sukk. 8 28 Rebutien 

Köhler von U. (1961) Medio (Pygmaea) Lobivia pygmaea (Fries) Backbg. Kakt. 

u. a. Sukk. 12 105 

Köhler von U. (1963) Zweibrücker Hybride 1962 15 113 

Krainz H. (1967) Rebutia, Die Kakteen. 

Marshall W.T. & Bock T.M. (1941) Cactaceae. Abbey Garden Press, Pasadena. 

79

Marshall W.T. & Woods R.S. (1945) Glossary of Succulent Plant Terms 

Abbey Gdn. Press Pasadena. 

Rausch W. (1975) Walter Rausch comments Ashingtonia 1 128 

Ritter F. (1977) Nieuwe cactussen uit Zuid-Amerika Succulenta 66 

Stace C.A. (1980) Plant Taxonomy and Biosystematics, Contemporary Biology, 

Edward Arnold. 

Schumann K. (1897) Gesemtbeschreibung der Kakteen, Neudamm. 

Schumann K. & Guerke M. (1898) Blühende Kakteen, Neudamm. 

Acknowledgements 

We sincerely wish to thank all the various persons who have helped in the 

preparation of this booklet. The descriptions are based on plants in cultivation at 

Abbey Brook. 

For technical suggestions and helpful advice to Mr. N. Wall of Higham Press and 

Carol and Ann at Abbey Brook for typing the original manuscript. Also to the 

Librarian, Royal Botanic Gardens, Kew for the use of facilities, to Dr. Gillian Fearn for 

help in proof reading and to Thelma Stuart for photographic assistance. 

Glossary 

acicular needle shaped. 

apomixis a biological system which can produce viable seeds by a process 

other than by direct fertilisation of the egg cell, 

apomictic a species which can produce seeds by the process of apomixis. 

areole a restricted area from which spines and/or flowers are produced, 

bristle hair-like spine, 

caespitose growing in clumps, 

campanulate bell-shaped, 

central spine the spine or spines arising from or near the centre of an areole, 

usually the largest spine or spines, 

filament the stalk upon which is borne the anther or pollen sac. 

funnel-form a flower which gradually widens from the base, 

globose shaped like a globe, 

hilum the scar at the base of the seed making the point of attachment to the 

funicle. 

spine a pointed more or less rigid structure which is homologous with a 

leaf. 

stamen the male floral organ which bears the pollen grains. It consists of a 

stalk called the filament and an anther or pollen sac. 

stigma the part of the flower that is the pollen receptor, 

style the stalk joining the stigma to the ovary, 

type locality the place where a type specimen was collected. 

80

The Cactus Centre of England 

Abbey Brook is the oldest established Cactus Nursery in the U. K. and we celebrated 

our 25th Anniversary in 1981. We have a vast range of plants for sale (well over 2,000 

species) and more than 500,000 plants on view. 

Plants and seeds of a wide range of Rebutia species available. 

Comprehensive colour illustrated plant list available, stamp appreciated. 

We also produce a separate seed list. 

Nursery Visits 

The nursery is open to visitors 6 days a week throughout the year including Saturdays 

and Sundays. 

2p.m. - 6p.m. (Closed all day Tuesdays) 

We are open on all Bank Holidays except Christmas Day, Boxing Day and New Years 

Day. 

The nursery is situated just north of Matlock on the A6 trunk road. 

Abbey Brook Cactus Nursery 

Old Hackney Lane, 

Matlock, Derbyshire, England. 

☎ National 0629 55360 

☎ International + 44 629 55360 

81

R. euanthema ▲ ▲ R. xanthocarpa f. salmonea 

R. wessneriana ▼ ▼ R. albipilosa 

R. senilis v. elegans ▼ ▼ 

82 

R. marsoneri

the genus rebutia 1895â€”1981 - Free

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