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Type: Article
Published: 2016-10-21
Page range: 201–221
Abstract views: 21
PDF downloaded: 1

Seven new species of Polystichum (subg. Haplopolystichum; Dryopteridaceae) from southern China

Guangxi Institute of Botany, Guangxi Zhuangzu Autonomous Region and the Chinese Academy of Sciences, Guilin, Guangxi 541006, China
Guangxi Institute of Botany, Guangxi Zhuangzu Autonomous Region and the Chinese Academy of Sciences, Guilin, Guangxi 541006, China
Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A.
Guizhou limestone caves Polystichum subg. Haplopolystichum Yunnan Pteridophytes

Abstract

Seven new fern species of Polystichum subg. Haplopolystichum (Dryopteridaceae) are described and illustrated from Guizhou and Yunnan provinces, Southwest China. These seven species include P. arcuatum, P. multispinulosum, and P. paucicarpum from Guizhou, and P. crassirachis, P. membranifolium, P. paraobliquum, and P. serratissimum from Yunnan. Four of these seven species are described from limestone caves. All seven species have extremely narrow distributions and are classified as Critically Endangered (CR) following IUCN Red List criteria.