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Issue: Vol. 434 No. 1: 24 February 2020
Type: Article
Published: 2020-02-24
DOI: 10.11646/phytotaxa.434.1.3
Page range: 22–34
Abstract views: 34
PDF downloaded: 2

A new species of Panaeolus (Agaricales, Basidiomycota) from Yunnan, Southwest China

College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, Yunnan, China. Center of Excellence in Fungal Research, Mae Fah Luang University, 57100 Chiang Rai, Thailand. School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand. Key laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China. Centre for Mountain Futures, Kunming Institute of Botany, Kunming 650201, Yunnan, China. East and Central Asia Regional Office, World Agroforestry Centre, Kunming 650201, Yunnan, China. Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand.
Key laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China. Centre for Mountain Futures, Kunming Institute of Botany, Kunming 650201, Yunnan, China.
Key laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China. Centre for Mountain Futures, Kunming Institute of Botany, Kunming 650201, Yunnan, China. East and Central Asia Regional Office, World Agroforestry Centre, Kunming 650201, Yunnan, China.
Center of Excellence in Fungal Research, Mae Fah Luang University, 57100 Chiang Rai, Thailand. School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.
Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand. Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Department of Biology, Faculty of Science, Chiang Mai University, 50200, Thailand.
College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, Yunnan, China. East and Central Asia Regional Office, World Agroforestry Centre, Kunming 650201, Yunnan, China.
Key laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China. Centre for Mountain Futures, Kunming Institute of Botany, Kunming 650201, Yunnan, China. East and Central Asia Regional Office, World Agroforestry Centre, Kunming 650201, Yunnan, China.
Center of Excellence in Fungal Research, Mae Fah Luang University, 57100 Chiang Rai, Thailand. School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand. Key laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China. Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand.
molecular systematics morphological features mushrooms nrITS taxonomy Fungi

Abstract

A new Panaeolus species was collected on a lawn at the Kunming Institute of Botany, Chinese Academy of Sciences in Southwest China and subjected to morphological and molecular analyses. Both macro- and micro-morphological features of the new species were described and compared with morphologically similar species in Panaeolus. The pileus has a distinctive reddish brown patch at the center. Phylogenetic analysis of nrITS data showed a distinct placement of the new species among the closest Panaeolus species, i.e. Panaeolus cyanescens (Berk & Broome) Sacc., Panaeolus cambodginiensis Ola’h & R. Heim, Panaeolus bisporus (Malençon & Bertault) Ew. Gerhardt and Panaeolus cyanescens var. bisporus (Malençon & Bertault) G. Moreno & Esteve-Rav. Both morphological features and phylogenetic data supported naming our taxon as a distinct new species in Panaeolus. Color photographs of basidiomata and micromorphological structures, a full description of the new species, and an updated phylogenetic tree to show the placement of the new species are provided.