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Issue: Vol. 734 No. 3: 22 Dec. 2025
Type: Article
Published: 2025-12-22
DOI: 10.11646/phytotaxa.734.3.3
Page range: 269-280
Abstract views: 29
PDF downloaded: 0

Trichopezizella xizangensis (Solenopeziaceae, Helotiales), a new species from Xizang, China

School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand; State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand; State Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China; Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand
1 new species Leotiomycetes morphology phylogeny taxonomy Fungi

Abstract

Trichopezizella is a saprobic genus within Solenopeziaceae, Helotiales. During our investigation of discomycete diversity in Xizang, China, we collected three Trichopezizella-like samples. Detailed morphological examinations, combined with phylogenetic analyses based on the internal transcribed spacer (ITS), nuclear ribosomal large subunit (LSU), the largest subunit of RNA polymerase II gene (RPB1) and the second largest subunit of RNA polymerase II (RPB2) sequences of Solenopeziaceae, revealed that the three samples represent a new species, Trichopezizella xizangensis. This species is characterized by spherical to cupulate, sessile apothecia covered with clavate, obtuse, smooth, brown hairs, lanceolate, unbranched paraphyses exceeding the asci by 17–36 μm, cylindrical-clavate, amyloid asci and fusoid ascospores. This study presents comprehensive morphological descriptions, illustrations, phylogenetic analyses, and an updated key to the species of Trichopezizella. Our findings expand the known diversity of Trichopezizella and provide new insights into the taxonomy and phylogeny of Solenopeziaceae, as well as into the discomycete diversity in Xizang, China.

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How to Cite

Su, H.-L., Zhao, Q., Chethana, K.T. & Hyde, K.D. (2025) Trichopezizella xizangensis (Solenopeziaceae, Helotiales), a new species from Xizang, China. Phytotaxa 734 (3): 269–280. https://doi.org/10.11646/phytotaxa.734.3.3