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Issue: Vol. 220 No. 1: 16 July 2015
Type: Article
Published: 2015-07-15
DOI: 10.11646/phytotaxa.220.1.2
Page range: 30–42
Abstract views: 23
PDF downloaded: 1

The phylogenetic affinities of Pellaea connectens, a rare endemic Chinese fern

Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature conservation, Beijing Forestry University, Beijing 100083, China
College of Landscape Architecture and Tourism, Hebei Agricultural University, Hebei 071000, China
Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature conservation, Beijing Forestry University, Beijing 100083, China
Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature conservation, Beijing Forestry University, Beijing 100083, China
Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature conservation, Beijing Forestry University, Beijing 100083, China
Laboratory of Systematic Evolution and Biogeography of Woody Plants, College of Nature conservation, Beijing Forestry University, Beijing 100083, China
China phylogeny Pellaea connectens C. Christensen Argyrochosma (J. Smith) Windham Pteridaceae Pteridophytes

Abstract

Using DNA sequences from five chloroplast makers (rbcL/ trnL–trnF/ rps4/ rps4–trnS/ trnG–trnR), we addressed the phylogenetic affinities of Pellaea connectens, a rare endemic Chinese cheilanthoid fern belonging to Pteridaceae. Our results confirmed that the species was a member of the newly segregated genus Argyrochosma, which was formerly considered as native to America, showing that the treatment of Pellaea connectens by Ching nor Tryon & Lugardon was supported. Moreover, its morphology, distribution, ecology, co-existing species, as well voucher specimens were also presented in this paper.