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Issue: Vol. 734 No. 1: 16 Dec. 2025
Type: Article
Published: 2025-12-16
DOI: 10.11646/phytotaxa.734.1.6
Page range: 77-88
Abstract views: 32
PDF downloaded: 0

A new species of Cortinarius subg. Telamonia (Agaricales) from Yunnan, China

Key Laboratory of Forest Disaster Warning and Control in Yunnan Province, College of Forestry, Southwest Forestry University, Kunming, Yunnan 650224, China; State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
Key Laboratory of Forest Disaster Warning and Control in Yunnan Province, College of Forestry, Southwest Forestry University, Kunming, Yunnan 650224, China
phylogeny morphology novel species section Privignati Fungi

Abstract

Cortinarius represents not only the most extensive genus within the Agaricales but also constitutes a significant ectomycorrhizal lineage, a crucial ectomycorrhizal genus for maintaining ecosystem functionality. During a field survey in the Three Parallel Rivers Region, China, two specimens of Cortinarius were collected from an Abies forest. Based on morphological and phylogenetic analysis of ITS and nrLSU sequences, a novel species, Cortinarius orientiprivignipallens, is classified within the subgenus Telamonia, section Privignati. This species is characterized by its fibrillose pileus surface, which is greyish-white and becomes glabrous as it matures; the stipe is greyish-violet at the apex, while remnants of the universal veil appear brown. A description, illustration, phylogenetic analysis results, and comparison with allied taxa are provided. In addition, a key to the 20 new species of Cortinarius subgenus Telamonia published in China from 2019 to 2025 is also provided.

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How to Cite

Yang, Y.-W., Li, T.-S., Zhao, Q. & Zhang, Y. (2025) A new species of Cortinarius subg. Telamonia (Agaricales) from Yunnan, China. Phytotaxa 734 (1): 77–88. https://doi.org/10.11646/phytotaxa.734.1.6