Monday, August 29, 2011

[Botany • 2010] Heterostemma xuansonense • new species of Heterostemma (Apocynaceae, Asclepiadoideae) from Vietnam

A new species in Apocynaceae, Heterostemma xuansonense T. B. Tran & Joo-Hwan Kim, is described from Vietnam; illustrations and a comparison with related species are also provided. Heterostemma xuansonense distinctly differs from H. grandiflorum Costantin by the flower color, the absence of a peduncle, and the size of the corona.

Keywords: Apocynaceae, Asclepiadoideae, Heterostemma, IUCN Red List, Phu Tho, Vietnam

A New Species of Heterostemma (Apocynaceae, Asclepiadoideae) from Vietnam
Author(s) :Tran The Bach and Kim Joo-Hwan
Source: Novon: A Journal for Botanical Nomenclature, 20(3):367-370. 2010.