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Issue: Vol. 767 No. 2: 21 Jul. 2026
Type: Article
Published: 2026-07-21
DOI: 10.11646/phytotaxa.767.2.2
Page range: 135-149
Abstract views: 143
PDF downloaded: 1

Morphological characteristics and phylogenetic analyses reveal Ceraceocium vitreum gen. et sp. nov. (Auriculariales, Basidiomycota) from southwestern 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
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, Department Microbial Drugs (MWIS), Helmholtz-Centre for Infection Research, 38124 Braunschweig, Germany
Fungi Biodiversity new genus taxonomy Yunnan Province

Abstract

Wood-inhabiting fungi represent a highly diverse group of macrofungi that play essential roles in forest ecosystems, they are considered as the “key player” in wood decomposition, because of their ability to produce lignocellulosic enzymes breaking down lignin, cellulose and hemicellulose. In the present study, a new wood-inhabiting fungal genus, Ceraceocium gen. nov., and a new species, C. vitreum sp. nov., found from southwestern China, are proposed based on a combination of morphological characteristics and molecular evidence. The new genus Ceraceocium is characterized by gelatinous basidiomata with smooth hymenial surface, a monomitic hyphal system and generative hyphae bearing clamp connections, and broadly ellipsoid basidiospores. Sequences of the internal transcribed spacers (ITS) and the large subunit (nrLSU) of the nuclear ribosomal DNA (rDNA) markers of the studied samples were generated. Phylogenetic analyses were conducted using Maximum Likelihood (ML) and Bayesian Inference (BI) methods. Phylogenetic analyses based on combined ITS+nrLSU datasets indicated that Ceraceocium vitreum gen. et sp. formed a distinct monophyletic lineage within the order Auriculariales.

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How to Cite

Yuan, Q., Zhou, S., Duan, H., Chen, Q., You, S. & Zhao, C. (2026) Morphological characteristics and phylogenetic analyses reveal Ceraceocium vitreum gen. et sp. nov. (Auriculariales, Basidiomycota) from southwestern China. Phytotaxa 767 (2): 135–149. https://doi.org/10.11646/phytotaxa.767.2.2