Acanthaceae Week: Thunbergia grandiflora from Delhi

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Gurcharan Singh

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Jun 11, 2011, 3:35:14 AM6/11/11
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Thunbergia grandiflora (Roxb. ex Rottl.) Roxb., Bot. Reg. 6: , pl. 495 1820.

syn: Flemingia grandiflora Roxb. ex Rottl.

Woody climber with broadly ovate often deeply cordate leaves, angular-toothed, 3-5 nerved; flowers in drooping racemes, on up to 5 cm long pedicels, corolla blue, soewhat 2-lipped. Photographed from DU, Delhi

Common names: Blue trumpet vine, Bengal clock vine, sky vine.

The plant though closely related to T. laurifolia is treated as synonym of T. alata in Kew Plant List and perhaps in Schonenberger, J. 1999. Floral structure, development and diversity in Thunbergia (Acanthaceae). Bot. J. Linn. Soc. 130: 1–36. Final comments can be made only after seeing this paper.
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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/

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