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Type: Article
Published: 2017-08-15
Page range: 144–148
Abstract views: 23
PDF downloaded: 1

Leptochilus mengsongensis (Polypodiaceae), a new species of fern from SW China

China Forest Exploration & Design Institute in Kunming, Yunnan 650216, China.
Yunnan Academy of Biodiversity, Southwest Forestry University, Kunming, Yunnan 650224, China.
Division of Forest and Biomaterial Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa Owaike, Kyoto 606-8502, Japan. Department of Plant Sciences, Faculty of Agriculture, Rajarata University, Anuradhapura 50000, Sri Lanka.
China Forest Exploration & Design Institute in Kunming, Yunnan 650216, China.
Wildlife Conservation Society, Yangon, Myanmar.
Cibodas Botanic Garden, Indonesian Institute of Sciences, Cianjur, West Java, Indonesia.
China Forest Exploration & Design Institute in Kunming, Yunnan 650216, China.
biodiversity hotspot endemic species Leptochilus Xishuangbanna Pteridophytes

Abstract

Leptochilus mengsongensis (Polypodiaceae), a new species of fern from Bulong Nature Reserve, Xishuangbanna, Yunnan, southwestern China, is described and illustrated. The main characters of morphological close relatives Leptochilus pedunculatus and Leptochilus axillaris were compared, results showed that it differs from L. axillaris mainly by its separate oblong-rhomboid acrostichoid patched sori, and densely set roots; meanwhile, it differs from L. pedunculatus mainly in its narrowly lanceolate fertile fronds, thinly leathery lamina and vague zigzag veins, and shorter stipe. Analysis of rbcL gene fragments of L. mengsongensis revealed that 20 of 663 sites differed from L. pedunculatus, thereby providing further evidence for its recognition as a distinct species.