Argostemma ehuangzhangense (Rubiaceae), a new species from Guangdong, China

By

Liu, Zhongcheng
Liu, Jia
Wanyi, Zhao
Fan, Qiang.
Ye, Huagu.
Wang, Lei
Liao, Wenbo

Type

Article

Date of Publication

2022

Original Publication

PhytoKeys

Volume

214

Pages

75--82

Subjects

Argostemma ehuangzhangense , China , Guangdong , new species , Rubiaceae

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.214.89276

 

Abstract

Argostemma ehuangzhangense, a new Rubiaceae species from E’huangzhang Nature Reserve, Guangdong Province, China, is here described and illustrated. A morphological comparison between the new species and its putative relatives, A. lamxayanum, A. laotica and A. verticillatum, is presented. The new species is mostly similar to A. laotica, but they can be distinguished from each other since Argostemma ehuangzhangense presents solitary flower (vs. 2-flowered inflorescences), flower lobes 4 (vs. 5) and anthers opening by longitudinal slits (vs. apical pores). In a preliminary IUCN Red List status of Argostemma ehuangzhangense this species is assigned as Vulnerable (VU).