Euphorbiaceae Fortnight : Euphorbia prostrata Aiton; SM2

[Samir Mehta]

Dear Group-members,

Euphorbia prostrata Aiton

Regards,

Samir Mehta

[Tapas Chakrabarty]

Yes,

T. Chakrabarty.

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[Samir Mehta]

Thank You.

Regards,

Samir Mehta

[J.M. Garg]

Forwarding again for Id assistance please.

Looks different from E. prostrata as per keys:

Three prostrate species are rather close. I found the following keys in Flora of India:

30 a. Plants prostrate, only branches or tips of branches decumbent; cyathia solitary, paired or 3 together 31
b. Plants erect, decumbent or ascending; cyathia more than 3 in glomerules 33
31 a. Stems and branches pinkish grey; mature capsules remaining within the involucre ... 32. E. thymifolia
b. Stems, branches and leaves green, glaucous-green, purplish green or blackish green; mature capsules protruding out from the involucre 32
32 a. Stems, branches and leaves blackish or purplish green; capsules acutely keeled, with ciliate hairs confined to keels only ... 26. E. prostrata
b. Stems, branches and leaves green to glaucous-green; capsules obtusely keeled, glabrous or sparsely hairy all over the surface ... 13. E. heyneana
33 a. Plants glabrous; leaves linear-lanceolate, 3 - 6 mm wide, glabrous to sparsely pilose ... 17. E. hyssopifolia 

Can it be E. heyneana?

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With regards,
J.M.Garg

[J.M. Garg]

Or rather may be Euphorbia thymifolia

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With regards,
J.M.Garg

[Nambiyath Balakrishnan]

The three photos show that they are E. thymifolia, as the capsules are hairy throughout and ciliate along the keels as in E. prostrata.

Balakrishnan

8/10/20

[Nambiyath Balakrishnan]

[J.M. Garg]

Thanks a lot, Balakrishan ji

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With regards,
J. M. Garg

[Samir Mehta]

Thank you Balakrishnan ji.

[anisop...@gmail.com]

Definitely E. thymifolia.  Note that the cyathial walls partially cover the dorsal side of the fruits at maturity.

Best,

Nathan

[J.M. Garg]

Thanks a lot, Nathan ji

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[Samir Mehta]

Thank you for your inputs Nathan ji.

Regards,

Samir Mehta

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