A new Dichocarpum W.T.Wang & P.K.Hsiao (Ranunculaceae) species from Guizhou, China

By

Wang, Bo
Wang, Zehuan
Xu, Wen-Fen
Li, Yunchao
Lu, Xiang
Sun, Qinwen
He, Shun-Zhi

Type

Article

Date of Publication

2025-8-26

Original Publication

PhytoKeys

Volume

262

Pages

17--30

Subjects

China , Dichocarpum , new species , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.262.141266

 

Abstract

A new species of Dichocarpum from Guizhou, China, is described and illustrated. Morphologically, it resembles D. auriculatum, D. trifoliolatum, D. basilare, D. franchetii, D. arisanense, D. adiantifolium, and D. uniflorum. However, it differs from these seven species by its creeping stolons, 3–5-foliolate leaflets with scalloped or suborbicular shape, and an inflorescence consisting of a single flower. The phylogenetic relationship with other species of the genus is examined based on three chloroplast gene segments (matK, trnL-F, trnH-psbA) and one nuclear ribosomal DNA region (ITS). In addition, an identification key to all Chinese species of Dichocarpum is provided.