Didymocarpus pingyuanensis (Gesneriaceae), a new species endemic to Danxia landscape from Guangdong Province, China, and two new combinations in Didymocarpus

By

Yang, Ling-Han
Dai, Jing-Min
Wen, Fang
Liu, Jian-Hui
Lan, Xue-Zheng
Fan, Qiang.

Type

Article

Date of Publication

2024

Original Publication

PhytoKeys

Volume

244

Pages

213--224

Subjects

Didymocarpus heucherifolius var. gamosepalus , Didymocarpus heucherifolius var. yinzhengii , flora of Danxia , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.244.126137

 

Abstract

Didymocarpus pingyuanensis, endemic to the Danxia landscape in Pingyuan County, Guangdong, China, is described and illustrated here. This species can be distinguished from other members of Didymocarpus sect. Heteroboea by its calyx deeply 5-lobed to about three quarters of its length. The phylogenetic position of the new species within Didymocarpus was examined using nuclear ribosomal internal transcribed spacer (ITS) sequences. Based on phylogenetics analysis and morphological evidence, we propose two new combinations, elevating the two varieties to species level, namely D. yinzhengii and D. gamosepalus.