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6 August 2019 Asplenium simaoense (Aspleniaceae), a New Fern Species from Yunnan, China, Based on Morphological and Molecular Data
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Abstract

A new asplenioid fern species, Asplenium simaoense (Aspleniaceae), found growing on an exposed slope of a limestone mountain in southwestern Yunnan, China, is described and illustrated. A preliminary phylogenetic analysis showed that A. simaoense is strongly supported as sister to A. tenuifolium, whereas A. simaoense is morphologically most similar to A. varians and A. sarelii. However, A. simaoense has rhizome scales entire and petioles (5–)12–20(–25) cm, while A. varians has rhizome scales subentire or fimbriate and petioles (0.5–)2–7(–12) cm and A. sarelii has rhizome scales denticulate and petioles 7–10 cm. Only one population of A. simaoense was found near a road. Its habitat is threatened by road construction and therefore it is recommended to be classified as CR, Critically Endangered, following IUCN red list criteria.

© Copyright 2019 by the American Society of Plant Taxonomists
Ke-Wang Xu, Lei Jiang, Wen-Bo Liao, and Li-Bing Zhang "Asplenium simaoense (Aspleniaceae), a New Fern Species from Yunnan, China, Based on Morphological and Molecular Data," Systematic Botany 44(3), 494-500, (6 August 2019). https://doi.org/10.1600/036364419X15620113920554
Published: 6 August 2019
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