Begonia dipetala

Begonia dipetala Graham, Bot. Mag. 55: t. 2849 1828. (Syn: Begonia bipetala Lodd. ex Otto & Dietr. [Spelling variant]; Begonia malabarica var. dipetala (Graham) C.B.Clarke; Haagea dipetala (Graham) Klotzsch);

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Begonia malabarica Lam. [Begoniaceae]: Name: Begonia malabarica Lam.

This is Begonia dipetala var dipetala and not B. malabarica. Begonia malabarica is an endemic species in Kerala. All the names published under the name B. malabarica from other part of India need a careful study.
In fact, B. malabarica was based on Rheede’s Tsjeria-narinampuli. It was validated by Lamark. It is an endemic species of kerala.
For further Reading kindly see{ 1}Santhosh Kumar E.S., Seema G. Gopal and G.M. Nair 2005. Re-appearance of Rheede’s Tsjeria-narinampuli – Its identity after the discovery and a note its allied species. Begonian 72 (Jul/Aug): 135-140.

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Source: An excursion flora of Central TN by K M Mathew

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Begonia dipetala var hydrophila (C.B.Clarke) E.S.S.Kumar et Seema

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Begonia malabarica :: Charmadi Ghat :: 12 NOV 2016 :: DVDEC03 : 4 posts by 3 authors. 2 images.

Charmadi Ghat Karnataka
Date: 12 NOV 2016 … Altitude: explored between: 873 – 976 m (2863 – 3201 ft) asl
Begonia malabarica Lam. … (family: Begoniaceae)

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With only two petals seen in all the flowers, this should be Begonia dipetala.

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