Dryopteris jinpingensis, a critically endangered diploid new species of Dryopteridaceae from Yunnan, China

Authors: Zuo, Zheng-Yu Country: People's Republic of China DOI: 10.3897/phytokeys.239.118655 Published: Jan. 1, 2024 Source: PhytoKeys OpenAlex: View in OpenAlex

Collection: Pensoft Publishers

Keywords: Dryopteris sect. Diclisodon · Topics: Fern and Epiphyte Biology, Plant and animal studies, Plant Diversity and Evolution

Dryopteris jinpingensis, a new species of diploid, sexually reproductive ferns of Dryopteridaceae from Yunnan, southwestern China, is described and illustrated. Morphologically, D. jinpingensis is similar to D. gaoligongensis but unique in elongated lanceolate laminae, sessile or subsessile pinna stalks, and overlapping membranous scales adnate to stipe base. Phylogenetic analyses based on both plastome and the nuclear AK1 gene sequences showed that D. jinpingensis is sister to D. gaoligongensis. A detailed taxonomic description with line drawings is provided, and its conservation status is evaluated to be critically endangered.

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