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Issue: Vol. 755 No. 2: 8 May 2026
Type: Article
Published: 2026-05-08
DOI: 10.11646/phytotaxa.755.2.2
Page range: 154-174
Abstract views: 0
PDF downloaded: 0

Hymenochaete yaoshanensis sp. nov. (Hymenochaetaceae, Hymenochaetales), a wood-inhabiting fungus from Yunnan Province, southwest China

Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University, Kunming 650224, P.R. China; College of Forestry, Southwest Forestry University, Kunming 650224, P.R. China
College of Forestry; Southwest Forestry University; Kunming 650224; P.R. China; Department Microbial Drugs (MWIS); Helmholtz-Centre for Infection Research; 38124 Braunschweig; Germany
College of Forestry, Southwest Forestry University, Kunming 650224, P.R. China
College of Forestry, Southwest Forestry University, Kunming 650224, P.R. China
College of Forestry, Southwest Forestry University, Kunming 650224, P.R. China
Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University, Kunming 650224, P.R. China; College of Forestry, Southwest Forestry University, Kunming 650224, P.R. China; Modern Industry School of Edible-fungi, Southwest Forestry University, Kunming 650224, P.R. China; Department Microbial Drugs (MWIS), Helmholtz-Centre for Infection Research, 38124 Braunschweig, Germany
Modern Industry School of Edible-fungi, Southwest Forestry University, Kunming 650224, P.R. China
Basidiomycota Morphology New species Phylogeny Taxonomy Fungi

Abstract

The fungi constitute a highly diverse group distinct from plants and animals, and accurately determining the taxonomic placement of newly discovered taxa is essential for understanding fungal evolution and ecological function. In this study, a new species, Hymenochaete yaoshanensis, is proposed based on a combination of morphological features and molecular evidence of ITS and nLSU. The phylogenetic analysis inferred from ITS+nLSU sequence data placed H. yaoshanensis within the family Hymenochaetaceae and showed it to be closely related to H. pinnatifida and H. longispora. Hymenochaete yaoshanensis is characterized by a tuberculate to locally verruculose hymenial surface, a monomitic hyphal system, slightly thick-walled generative hyphae with simple septa, and oblong ellipsoid basidiospores (4–6 × 2–3 µm). A full description, illustrations, and phylogenetic analysis are provided to facilitate future taxonomic and systematic studies of Hymenochaete taxa.

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How to Cite

Xu, X., Li, M., Feng, J., Chen, M., Deng, Y., Zhao, C. & Shen, S. (2026) Hymenochaete yaoshanensis sp. nov. (Hymenochaetaceae, Hymenochaetales), a wood-inhabiting fungus from Yunnan Province, southwest China. Phytotaxa 755 (2): 154–174. https://doi.org/10.11646/phytotaxa.755.2.2