Hoya pyrifolia (Apocynaceae), a new species from south-western Yunnan, China

By

Huang, Er-Feng
Yao, Gang
Rihong, Jiang
Yang, Lei-Lei
Wang, Xi
Zhang, Zhong-Shuai
Zhang, Xianchun

Type

Article

Date of Publication

2021

Original Publication

PhytoKeys

Volume

174

Pages

95--106

Subjects

Apocynaceae , Asclepiodoideae , China , Hoya , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.174.60137

 

Abstract

Hoya pyrifolia, a new species of Apocynaceae from Yunnan Province, China, is described and illustrated. Results from phylogenetic analyses, based on combined DNA fragments of the nuclear ribosomal external transcribed spacer (ETS), intergeneric transcribed spacer (ITS) and three plastid DNA fragments (matK, psbA-trnH and trnT-trnL), showed that the new species was nested within a clade, including Hoya species distributed in the subtropical foothills of the Himalayas and the Tibet-Sichuan Plateau. Morphologically, the new species can be distinguished from its close relatives by its pyriform and slightly pubescent leaves, as well as the 4-flowered inflorescences.