Euphorbiaceae Week: Euphorbia lactea 'Cristata' from Delhi

Gurcharan Singh

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Mar 9, 2011, 6:38:30 AM3/9/11

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Euphorbia lactea 'Cristata' from Delhi This cultivar of E. lactea has tips of branches forming cristate shape like a cock's comb.

Please note the typical straight branches of E lactea with white bands on the faces in third photograph.

--
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://people.du.ac.in/~singhg45/

Euphorbia-lactea-cristata-Delhi-1 copy.jpg

Euphorbia-lactea-cristata-Delhi-2 copy.jpg

Euphorbia-lactea-cristata-Delhi-3 copy.jpg

tanay bose

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Mar 9, 2011, 8:13:27 AM3/9/11

to Gurcharan Singh, efloraofindia

I think this is quite common garden plant

Tanay

--

Tanay Bose

Research Assistant & Teaching Assistant.
Department of Botany.
University of British Columbia .
3529-6270 University Blvd.
Vancouver, B.C. V6T 1Z4 (Canada)
Phone: 778-323-4036 (Mobile)

604-822-2019 (Lab)

604-822-6089 (Fax)

ta...@interchange.ubc.ca

Webpages:

http://www.botany.ubc.ca/people/mberbee.html

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https://sites.google.com/site/efloraofindia/

Rashida Atthar

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Mar 9, 2011, 9:47:58 AM3/9/11

to tanay bose, Gurcharan Singh, efloraofindia

Thank you Sir for the nice pictures and explanation of this Euphorbia. We are having the most delightful panoramic viiew of all the Euphorbias from you along with other plants from the family since last hree days! Thanks once again.

regards,

Rashida.

Gurcharan Singh

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Mar 9, 2011, 10:08:57 AM3/9/11

to Rashida Atthar, tanay bose, efloraofindia

Thanks Rashida ji

Perhaps we can expand the key for woody species of Euphorbia as under:

Stem rounded, not angled or winged:.................................................................................... E. nivulia

Stem angled or winged

Angles not produced into wing, spirally arranged:.......................................................... E. neriifolia

Angles produced into wings

Wings 3-4

wings running straight, sinuate, regularly dentate

Stems green without white bands ,..........................:........E. antiquorum

Stems white wholly or partially

Stems with white bands on faces

Stem apex not cristate (without crowns at tips).......E. lactea

Stem apex cristate (with crowns at tips)..................E lactea cv. Cristata

Stems uniformly greyish white........................................E. lactea cv. White Ghost

wings running spirally, .........................................................................E. tortilis

Wings 5-6, undulate.......................................................................................E. royleana

Rashida Atthar

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Mar 9, 2011, 10:52:45 AM3/9/11

to Gurcharan Singh, tanay bose, efloraofindia

Thank you Sir for this truely learning experience. How to actually develop simple keys of difficult to differentiate species.! Shall try to follow this. Thanks once again.