A new species of Helicteres (Malvaceae) from southern Vietnam

Nghia Son HOANG ； Dinh Thach BUI ； Tran Nhan Tam NGUYEN ； Van Son DANG

《TAIWANIA》 65卷3期 (2020/09) Pp. 321-325

https://doi.org/10.6165/tai.2020.65.321

摘要

A new species of Helicteres (Malvaceae), H. daknongensis V.S.Dang & D.T.Bui from Gia Nghia district, Dak Nong province, southern Vietnam, is described and illustrated. This species is morphologically similar to H. viscida Blume and H. hirsuta Lour. but differs by having smaller petals and fruits, and different petal colour. A morphological description, photographs and a table comparing the new species with its closely related species are provided, as well as an updated key to Helicteres in Vietnam.

關鍵字

Dak Nong ； Helicteres daknongensis ； Helicteres hirsute ； Helicteres viscida ； Malvaceae ； new species ； taxonomy

參考文獻

Chantaranothai, P. and S. Poompo. 2019. Helicteres prostrata (Malvaceae), a new record for Thailand and lectotypifications of H. poilanei and H. vinosa. Thai Forest Bull., Bot. 47(1): 16–18.

Cristóbal, C.L. 2001. Taxonomía del género Helicteres (Sterculiaceae). Revisión de las especies Americana. Bonplandia 11(1-4): 1–206.

Do, V.T., H.T. Luu, S. Wanke and C. Neinhuis. 2015. Three New Species and Three New Records of Aristolochia Subgenus Siphisia from Vietnam Including a Key to the Asian Species. Syst. Bot. 40(3): 671–691.

Thuong, S.D., T.T. Bach, R.K. Choudhary, G.C. Tucker, X. Cornejo and J. Lee. 2013. Capparis daknongensis (Capparaceae), a new species from Vietnam. Ann. Bot. Fennici 50(1-2): 99–102.

IUCN. 2012. IUCN red list categories and criteria, Version 3.1. prepared by the IUCN Species Survival Commission. IUCN, Gland, Switzerland and Cambridge, UK.