Acanthaceae Week: Thunbergia alata from California

[Gurcharan Singh]

Thunbergia alata Bojer ex Sims, Bot. Mag. 52: t. 2591 1825.

syn: Endomelas alata (Bojer ex Sims) Raf.; Thunbergia cordifolia Nees.

Common Name: Black-eyed susan vine

It is interesting to note Thunbergia grandiflora Roxb. is considered as synonym of this species in the Kew Plant List based on TROPICOS source. Interestingly this conclusion is base on a paper Schonenberger, J. 1999. Floral structure, development and diversity in Thunbergia (Acanthaceae). Bot. J. Linn. Soc. 130: 1–36., in which T. erecta is perhaps also considered as synonym of this species, but Plant List treats it as an accpted name.

I request any colleague who has online access to this journal to kindly help in getting this important paper.  

Plant was photographed from California in 2010, plant climbing on fence

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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/