Begonia guangdongensis, a new species of Begonia (Begoniaceae) from Guangdong, China

By

Tu, Wen-hui
Wang, Bing-Mou
Huang, Yi
Yao, Gang
Huang, Jiu-Xiang
Li, Yuling

Type

Article

Date of Publication

2020

Original Publication

PhytoKeys

Volume

162

Pages

29--36

Subjects

Begonia sect. Coelocentrum , Guangdong , limestone karsts , new taxon

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.162.51913

 

Abstract

A new species of Begonia section Coelocentrum, B. guangdongensis W.H. Tu, B.M. Wang & Y.L. Li from Guangdong Province, China, is described and illustrated here. Morphologically, the new species is most similar to B. biflora T. C. Ku and B. longistyla Y. M. Shui & W. H. Chen, but differs from B. biflora by its rugose leaves and glabrous capsules and from B. longistyla by its glabrous stipules without ciliate margin, densely hirsute-pilose leaves and obtuse apex of bracts. Additionally, it is also somewhat similar to B. chongzuoensis Yan Liu, S. M. Ku & C.-I Peng, but there are significant distinctions in their stipules, leaves and bracts. The conservation status of B. guangdongensis is assessed as Critically Endangered (CR), according to the IUCN Red List Categories and Criteria.