Dinesh Valke

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Nov 3, 2013, 1:13:29 PM11/3/13

to efloraofindia

Euphorbiaceae fortnight
castor OR spurge family

Synadenium grantii Hook.f.

Native of tropical Africa; cultivated elsewhere.

NPGS / GRIN and The Plant List (2010). Version 1 treat Synadenium grantii Hook.f. as synonym of Euphorbia umbellata (Pax) Bruyns

at Sajjangad on 19 OCT 07

Regards.
Dinesh

Tapas Chakrabarty

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Nov 3, 2013, 1:22:38 PM11/3/13

to Dinesh Valke, efloraofindia

Excellent once again.

T. Chakrabarty.

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Dinesh Valke

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Nov 4, 2013, 1:24:25 AM11/4/13

to Tapas Chakrabarty, efloraofindia

Thank you very much Tapas ji for the appreciation.

Must consider about this plant's latest name ...

NPGS / GRIN and The Plant List (2010). Version 1 treat Synadenium grantii Hook.f. as synonym of Euphorbia umbellata (Pax) Bruyns.

Regards.

Dinesh

Gurcharan Singh

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Nov 4, 2013, 5:52:51 AM11/4/13

to Dinesh Valke, Tapas Chakrabarty, efloraofindia

Dinesh ji and Tapas ji

Perhaps one thing needs to be resolved, whether above plant is to be called Euphorbia grantii Oliv., 1875 or Euphorbia umbellata (Pax) Bruyns, 2007

The Plant list lists both as distinct

Under E. grantii only one synonym is listed E. mulemae Rendle

Under E. umbellata following are listed as synonyms

Euphorbia pseudograntii Bruyns [Illegitimate]

Synadenium grantii Hook.f.

Synadenium umbellatum Pax

Synadenium umbellatum var. puberulum N.E.Br.

I thought of checking Wikipedia, which in recent years is turning to be reliable

under E. grantii it shows image of Synadenium grantii

http://en.wikipedia.org/wiki/Euphorbia_grantii

http://en.wikipedia.org/wiki/File:SynadeniumGrantii.jpg

Under E. umbellata web shows images similar to above and Wikipedia although not having any image but lists synonyms similat to the Plant List.

Frankly images on the internet are no help although description in Hortus Third may help in calling our plant as E. umbellata (syn: Synadenium grantii)

Euphorbia grantii Oliver: Robust shrub, 5-10 ft; leaves somewhat leathery , strap-shaped or linear-lanceolate, up to 1 ft long, 1 inch wide, sessile; cyathia in umbels to 15 inch across, glands 4.

Synadenium grantii Hook.f.: Shrub, 8-12 ft; leaves somewhat fleshy, oblanceolate to obovate, 3-7 inch long, tapering to petiole 7-8 mm long; margin entire, wavy to slightly toothed, cyathia in axillary much-branched cymes. Leaves are red in cultivar 'Rubra'.

Dr. Gurcharan Singh

Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089

http://www.gurcharanfamily.com/
http://people.du.ac.in/~singhg45/

Dinesh Valke

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Nov 4, 2013, 6:54:53 AM11/4/13

to Gurcharan Singh, Tapas Chakrabarty, efloraofindia

Thank you Gurcharan ji for bringing this name Euphorbia grantii Oliv. to notice.

Regards.

Dinesh

Tapas Chakrabarty

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Nov 5, 2013, 1:47:59 AM11/5/13

to efloraofindia, Gurcharan Singh

---------- Forwarded message ----------
From: Nambiyath Balakrishnan <npba...@gmail.com>
Date: Mon, Nov 4, 2013 at 6:24 PM
Subject: Re: [efloraofindia:172951] Euphorbiaceae fortnight :: Synadenium grantii at Sajjangad :: DV56
To: Tapas Chakrabarty <tcha...@gmail.com>

This plant is Synadenium grantii Hook.f. S. umbellatum Pax is usually treated as one of its synonym.
However some recent authors treat this genus as synonym of Euphorbia and then the correct name should be Euphorbia pubescens (Pax) Bruyns This African species was introduced into India and is now found as fence in many areas, particularly in S.India, It is often found naturalised in some areas.

Please refer to EGGLI, U. 2002. Illustrated Handbook of Succulent Plants: Dicotyledons. Susan Carter of Kew has done the genera Euphorbia and Synadenium.

N.P.Balakrishnan

4 Nov. 2013

On 4 November 2013 16:30, Tapas Chakrabarty <tcha...@gmail.com> wrote:

Dinesh Valke

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Nov 9, 2013, 12:33:25 PM11/9/13

to Tapas Chakrabarty, efloraofindia, Gurcharan Singh

Thank you very much Tapas ji and Balakrishnan ji for the additional information regarding names and synonymy.

Regards.

Dinesh

J.M. Garg

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Nov 21, 2013, 2:40:47 AM11/21/13

to Tapas Chakrabarty, efloraofindia, Gurcharan Singh, Nambiyath Balakrishnan, Dinesh Valke

Hi, Balakrishnan ji,

I think you mean to say Euphorbia umbellata (Pax) Bruyns instead of Euphorbia pubescens (Pax) Bruyns, here.

With regards,
J.M.Garg

http://en.wikipedia.org/wiki/User:Jmgarg1

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Nambiyath Balakrishnan

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Nov 21, 2013, 5:03:13 AM11/21/13

to J.M. Garg, Tapas Chakrabarty, efloraofindia, Gurcharan Singh, Dinesh Valke

If you treat Synadenium as a synonym of Euphorbia, then the correct name should be:

Euphorbia umbellata (Pax) Bruyns [synonyms: Synadenium umbellatum Pax (1894) ; Synadenium grantii Hook.f.]

If you treat Synadenium as an independent genus, then the correct name should be:

Synadenium grantii Hook.f. (1867)

You cannot use Euphorbia grantii for this species, because there is already an earlier E. grantii Oliv. (1875) for a different species.

Euphorbia pubescens (Pax) Bruyns is an illegitimate name, as it is preoccupied by E. pubescens Vahl (1791)

N.P. Balakrishnan, 21 Nov. 2013

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