A new Marasmius species (Agaricales, Marasmiaceae) with sessile basidiomata growing on wood, from Yunnan, China

QIU-YUE ZHANG; JING SI; HAI-JIAO LI

doi:10.11646/phytotaxa.578.2.3

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

Type: Article

Published: 2023-01-06

DOI: 10.11646/phytotaxa.578.2.3

Page range: 169-179

Abstract views: 56

PDF downloaded: 1

**A new Marasmius species (Agaricales, Marasmiaceae) with sessile basidiomata growing on wood, from Yunnan, China**

QIU-YUE ZHANG⁺⁻
JING SI⁺⁻
HAI-JIAO LI⁺⁻

Institute of Microbiology, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China

National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China

Phylogeny taxonomy wood- and litter-inhabiting fungi Fungi

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Abstract

Marasmius yunnanensis, a new species belonging to Marasmius section Marasmius, was found in Yunnan Province, southwestern China. It is characterized by its minute basidiomata, a conchoidal, reniform to semicircular pileus, a short to inconspicuous stipe, complete or incomplete collarium, Rotalis-type and smooth cheilocystidia and pileipellis cells, and ellipsoid basidiospores measuring 8–10 × 5–6.2 μm. It is described, illustrated, and compared with similar taxa according to morphological and molecular data.

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