Petrocodon parviflorus (Gesneriaceae), a new species identified by both morphological and molecular evidence from limestone caves in Guangxi, China

By

Liu, Rui-Ning
Tan, Ke
Chen, Ping-Ya
Bai, Xinxiang
Xiong, Chi
He, Song-Tao
Wen, Fang

Type

Article

Date of Publication

2025-7-28

Original Publication

PhytoKeys

Volume

260

Pages

201--212

Subjects

ITS , limestone flora , molecular phylogeny , Petrocodon , taxonomy , trnL-F

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.260.153384

 

Abstract

Petrocodon parviflorus, a new species of Gesneriaceae, is a typically cave-dwelling species from the limestone region in Guangxi, China. Morphologically, this new species resembles P. lui, but can be readily distinguished by differences in corolla limb lobe shape, calyx lobe surface texture, pistil style length, and central staminode length. Molecular evidence supports its close phylogenetic relationship with P. lui despite their morphological distinctness. Based on the IUCN Red List Categories and Criteria, this species is assessed as Vulnerable (VU, D2).