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Issue: Vol. 731 No. 1: 25 Nov. 2025
Type: Article
Published: 2025-11-25
DOI: 10.11646/phytotaxa.731.1.4
Page range: 51-66
Abstract views: 107
PDF downloaded: 14

Molecular phylogeny and morphology reveal a new wood-inhabiting fungal species, Stereum tongbiguanense (Stereaceae, Russulales) from China

College of Forestry, Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University, Kunming 650224, P.R. China, Modern Industry School of Edible Fungi, Southwest Forestry University, Kunming 650224, P.R. China
College of Forestry, Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University, Kunming 650224, P.R. China
College of Forestry, Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University, Kunming 650224, P.R. China
College of Forestry, Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, Southwest Forestry University, Kunming 650224, P.R. China
Yunnan Tongbiguan Provincial Nature Reserve, Mang 679319, P.R. China
Yunnan Tongbiguan Provincial Nature Reserve, Mang 679319, P.R. China
Yunnan Tongbiguan Provincial Nature Reserve, Mang 679319, P.R. China
College of Forestry, Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province, 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
Fungi Basidiomycota Classification Molecular systematics New Taxon Wood-inhabiting fungi Yunnan Province

Abstract

Taxonomy plays a central role in understanding the diversity of life, translating the products of biological exploration and discovery (specimens and observations) into systems of names that establish a “classification home” for taxa. In this study, a new species, Stereum tongbiguanense, is proposed based on the morphological features and molecular evidence. The new species is characterized by coriaceous basidiomata with smooth, white to cream hymenial surface, a dimitic hyphal system with generative hyphae bearing simple septa, and allantoid basidiospores measuring 5.4–6.8 × 2.5–3.5 µm. The phylogenetic tree inferred from ITS+nLSU sequences reveals that S. tongbiguanense is nested within the family Stereaceae of the order Russulales, forms a sister lineage with S. tropicum, and is also closely related to S. insigne. A full description, illustrations, and phylogenetic analysis results of the new species are provided.

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How to Cite

Chen, M., Deng, Y., Wang, K., Zhu, Y., Yang, R., Zhang, S., Su, Q. & Zhao, C. (2025) Molecular phylogeny and morphology reveal a new wood-inhabiting fungal species, Stereum tongbiguanense (Stereaceae, Russulales) from China. Phytotaxa 731 (1): 51–66. https://doi.org/10.11646/phytotaxa.731.1.4