Dryopteris wulingshanensis (Dryopteridaceae), a new species from Hunan, China

By

SHU, Jiang-Ping
Liu, Zi-Yue
Gu, Zhirong
Chen, Li Jun, 1980-
Wei, Hongjin
Zhou, Xi-Le
Yan, Yuehong
Wang, Ruijiang

Type

Article

Date of Publication

2021

Original Publication

PhytoKeys

Volume

185

Pages

17--26

Subjects

fern , new taxon , Phylogeny , rbcL , subg. Dryopteris

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.185.72019

 

Abstract

Dryopteris wulingshanensis, a new species growing on limestone in the Wulingshan Mountains, Hunan, China, is described and illustrated. This species is most similar to D. jishouensis and D. gymnophylla on general morphological traits, such as the form of scales, rhizome and sori, but differs by the number of vascular bundles at the base of the petiole, length to width ratio of lamina, stalk length of basal pinnae, division of the lamina, apex form of the pinnule and habitat. Moreover, molecular phylogenetic analysis using the chloroplast rbcL gene suggested that D. wulingshanensis, as the sister group of D. jishouensis, is a monophyletic clade. According to its restricted geographic range, small populations and few individuals, D. wulingshanensis should be considered endangered, according to the IUCN Red List criteria.