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Issue: Vol. 766 No. 2: 9 Jul. 2026
Type: Article
Published: 2026-07-09
DOI: 10.11646/phytotaxa.766.2.3
Page range: 137-152
Abstract views: 58
PDF downloaded: 1

A new false truffle species, Hysterangium shibaoshanense (Hysterangiales, Basidiomycota), from northwestern Yunnan, China

College of Agriculture and Biological Science; Dali University; Dali 671003; China; School of Science; Mae Fah Luang University; Chiang Rai 57100; Thailand; Center of Excellence in Fungal Research; Mae Fah Luang University; Chiang Rai 57100; Thailand
School of Ethnic Medicine; Yunnan Minzu University; Kunming 650504; Yunnan; China
College of Agriculture and Biological Science; Dali University; Dali 671003; China
School of Science; Mae Fah Luang University; Chiang Rai 57100; Thailand; Center of Excellence in Fungal Research; Mae Fah Luang University; Chiang Rai 57100; Thailand
College of Agriculture and Biological Science; Dali University; Dali 671003; China
Center of Excellence in Fungal Research; Mae Fah Luang University; Chiang Rai 57100; Thailand
multigene phylogenetic analysis morphology taxonomy false truffle Hysterangiaceae Fungi hypogeous fungi multi-locus phylogenetic analysis

Abstract

A new species of false truffle was discovered in Shibaoshan Mountain, located in northwestern Yunnan Province, China. Through morphological examination and multi-locus phylogenetic analyses utilizing ITS, nrLSU, atp6, rpb2, and tef1 sequences, this species is formally described as Hysterangium shibaoshanense sp. nov. The species is distinguished by basidiomata with a non-discoloring peridium, relatively small and light golden-yellow spores (excluding utricle, measuring 2–4 × 0.8–1.5 μm), and utricles that are asymmetrically inflated in 5% KOH or water, reaching 0.5–1.5 μm in thickness from the spore wall. A comparative analysis of the main morphological characteristics of 16 Chinese Hysterangium species is presented, along with a dichotomous key.

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How to Cite

Li, L., Li, S.-H., Tang, S.-M., Thongklang, N., Luo, Z.-L. & Hyde, K.D. (2026) A new false truffle species, Hysterangium shibaoshanense (Hysterangiales, Basidiomycota), from northwestern Yunnan, China. Phytotaxa 766 (2): 137–152. https://doi.org/10.11646/phytotaxa.766.2.3