Petrocodon wui (Gesneriaceae), a new species from Guizhou, China

By

Zhang, Ren Bo
Deng, Tan
Li, Nan
Wen, Fang

Type

Article

Date of Publication

2023

Original Publication

PhytoKeys

Volume

225

Pages

41--51

Subjects

Didymocarpoideae , Flora of Guizhou , lithophyte , new taxon , Petrocodon chishuiensis , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.225.99660

 

Abstract

Petrocodon wui F.Wen & R.B.Zhang (Gesneriaceae), a typically lithophyte occurring in the Danxia areas of north-western Guizhou, China, is described and illustrated as new to science. The new species shows overall similarity with P. chishuiensis Z.B.Xin, F.Wen & S.B.Zhou, which is also its sister species, based on molecular evidence. The new species can be distinguished from P. chishuiensis by the elongated rhizome, the relatively long indumentum on the peduncle, the shape, size and indumentum of calyx lobes, the location of the stamens in the corolla tube and the shape, size and indumentum of the stigma. We provide a diagnosis, detailed description, photographic images and a table with taxonomic notes to distinguish several other morphologically similar Petrocodon species.