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Issue: Vol. 450 No. 1: 24 June 2020
Type: Correspondence
Published: 2020-06-24
DOI: 10.11646/phytotaxa.450.1.10
Page range: 115–118
Abstract views: 37
PDF downloaded: 2

Polystichum neoacutidens (subg. Haplopolystichum; Dryopteridaceae), a new fern from northeastern Thailand

Plants of Thailand Research Unit, Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282, Myanmar.
Department of Horticulture, Faculty of Agriculture, Kasetsart University, 50 Ngam Wong Wan Rd., Lat Yao, Chatuchak, Bangkok 10900, Thailand.
Missouri Botanical Garden, P. O. Box 299, St. Louis, Missouri 63166-0299, USA and Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, Sichuan 610041, China.
Polystichum acutidens P. subg. Haplopolystichum limestone habitats Loei Province Pteridophytes

Abstract

A new fern species, Polystichum neoacutidens (Dryopteridaceae), is described and illustrated from a limestone area in northeastern Thailand. It is distinguished from its closest relative, P. acutidens, by the color of petioles and rachises, density of petiole scales, and position of sori.