Viola xinchengensis (Violaceae), a new species from central Guangxi, China

By

Wei, Guiyuan
Xu, Chuan–gui
Li, Ying–jing
Feng, Bin
Hu, Qi–min
Yang, Chao
Qu, Xin–cheng
Nong, You

Type

Article

Date of Publication

2025

Original Publication

PhytoKeys

Volume

253

Pages

143--154

Subjects

Morphology , new species , sinkhole , taxonomy , Viola

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.253.128972

 

Abstract

Viola xinchengensis (Violaceae), a new species from Guangxi, China, is established on the basis of morphological and molecular evidence. This new species resembles V. lucens, but differs from the latter by its stipules margin long fimbriate-dentate (vs. fimbriate-dentate), stolon absent (vs. stolon slender, often producing a new plant at the top) and sepals 4–6 mm, glabrous (vs. 2.5–3 mm, villous). Viola xinchengensis is similar to V. fargesii, but it can be easily distinguished by its pedicels sparsely white villous (vs. densely spreading white puberulous), stolon absent (vs. stolon longer, elongated, puberulous, sometimes stem-like) and sepals 4–6 mm, glabrous (vs. 7–9 mm, puberulous). Our morphology analysis confirms that the new species belongs to V. sect. Plagiostigma subsect. Diffusae. Photographs, an illustration, a distribution map and comparisons with the most similar species are also provided.