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Issue: Vol. 782 No. 2: 29 Oct. 2026
Type: Article
Published: 2026-10-29
DOI: 10.11646/phytotaxa.782.2.6
Page range: 176-186
Abstract views: 44
PDF downloaded: 2

Drynaria lineatisora (Polypodiaceae), a long-overlooked new species from China, Myanmar and Vietnam based on morphological and molecular phylogenetic evidence

Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
Applied Research Center for Tropical Plant Conservation; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; China
School of Ecology and Environmental Science; Yunnan University; Kunming 650504; Yunnan; China
Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
Centre for Gardening and Horticulture; Xishuangbanna Tropical Botanical Garden; Chinese Academy of Sciences; Mengla 666303; Yunnan; China
School of Ecology and Environmental Science; Yunnan University; Kunming 650504; Yunnan; China
Pteridophytes Crypsinoideae Drynaria coronans spore scales phylogeny

Abstract

Drynaria lineatisora, a new fern species from China, Myanmar, and Vietnam, is described and illustrated here. This species is morphologically similar to D. coronans but can be clearly distinguished by its elongate-linear sori, dark brown scales with shortly spinulose-denticulate margins, and spiny spore ornamentation. In contrast, D. coronans has orbicular to short-linear sori, yellowish scales with long-ciliate margins, and smooth spore surfaces. Moreover, D. coronans is widely distributed across tropical and subtropical regions of Southeast Asia, whereas D. lineatisora shows a disjunct distribution limited to mountainous areas of Medog (Xizang, China), northern Myanmar, and northern Vietnam. Molecular phylogenetic evidence based on chloroplast genome further confirms significant divergence between the two species.

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How to Cite

Jiang, L.-J., Zhao, J., Ma, D.-N., Wang, W.-G., Xi, H.-C., Sen, Y., Ma, X.-D., Zuo, X., Shen, J.-Y. & Zhou, X.-M. (2026) Drynaria lineatisora (Polypodiaceae), a long-overlooked new species from China, Myanmar and Vietnam based on morphological and molecular phylogenetic evidence. Phytotaxa 782 (2): 176–186. https://doi.org/10.11646/phytotaxa.782.2.6