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Issue: Vol. 607 No. 2: 8 Aug. 2023
Type: Article
Published: 2023-08-08
DOI: 10.11646/phytotaxa.607.2.2
Page range: 133-141
Abstract views: 199
PDF downloaded: 11

Cyrtomium remotipinnum (Dryopteridaceae), a new species from karst area in Guangxi, China

Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization; Guangxi Institute of Botany; Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences; Guilin; Guangxi 541006; China
Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization; Guangxi Institute of Botany; Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences; Guilin; Guangxi 541006; China
Guangxi Key Laboratory of Plant Functional Phytochemicals and Sustainable Utilization; Guangxi Institute of Botany; Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences; Guilin; Guangxi 541006; China
Eastern China Conservation Centre for Wild Endangered Plant Resources; Chinese Academy of Sciences; Shanghai 201602; China
Pteridophytes Cyrtomium ser. Falcata IUCN Red List limestone area venation patterns soral distribution

Abstract

Cyrtomium remotipinnum, a new species of Dryopteridaceae from the karst areas in Guangxi, China, is described and illustrated. The new species is distinguished from the two most similar species, C. calcis and C. pachyphyllum, by its larger stature and higher length-to-width ratio of pinnae. The new species is classified as Critically Endangered (CR) following IUCN Red List Criteria. In addition, this study attempted to identify some easily confused Cyrtomium species by combining venation patterns and soral distributions with other characters.

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