A new species and new records of Phlegmacium (Cortinariaceae) from China based on molecular and morphological evidence

FEI-FEI LIU; GANG WU; ZHU L. YANG

doi:10.11646/phytotaxa.578.2.1

Issue: Vol. 578 No. 2: 6 January 2023

Type: Article

Published: 2023-01-06

DOI: 10.11646/phytotaxa.578.2.1

Page range: 141-157

Abstract views: 112

PDF downloaded: 3

**A new species and new records of Phlegmacium (Cortinariaceae) from China based on molecular and morphological evidence**

FEI-FEI LIU⁺⁻
GANG WU⁺⁻
ZHU L. YANG⁺⁻

Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.

Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China. unnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.

Agaricales Cortinariaceae ITS Phlegmacium phylogeny taxonomy Fungi

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Abstract

A new species, Phlegmacium ochraceosquamosum, is described from southwestern China based on morphological and molecular evidence. The new taxon is associated with subtropical fagaceous trees and is characterized by a combination of viscid pale yellow to ochraceous yellow pileus covered with ochraceous brown squamules and fibrils, cylindrical to clavate stipe with ochraceous brown fibrillose girdles, and elongate to subamygdaliform basidiospores. Four species, namely P. glaucopus, P. paracephalixum, P. patrickense, and P. violaceorubens, were first discovered in China. Additional vouchers for two species, namely P. caesiocolor and P. kytoevuorii very recently reported from China, were provided. Illustrated morphological descriptions and comparisons with closely related species are provided. The recognition of these species was further confirmed by phylogenetic analysis based on ITS sequences.

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