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Issue: Vol. 769 No. 2: 11 Aug. 2026
Type: Article
Published: 2026-08-11
DOI: 10.11646/phytotaxa.769.2.5
Page range: 163-173
Abstract views: 41
PDF downloaded: 0

Xuaniella thailandensis (Porotheleaceae, Agaricales), a new macrofungus from northern Thailand

Office of Research Administration; Chiang Mai University; Chiang Mai 50200; Thailand; Center of Excellence in Microbial Diversity and Sustainable Utilization; Chiang Mai University; Chiang Mai 50200; Thailand; Department of Biology; Faculty of Science; Chiang Mai University; Chiang Mai 50200; Thailand
Chiang Mai Zoo; Chiang Mai 50200; Thailand
Office of Research Administration; Chiang Mai University; Chiang Mai 50200; Thailand; Center of Excellence in Microbial Diversity and Sustainable Utilization; Chiang Mai University; Chiang Mai 50200; Thailand; Department of Biology; Faculty of Science; Chiang Mai University; Chiang Mai 50200; Thailand
Fungi Basidiomycota new taxon phylogeny saprotrophic fungus taxonomy tropical area

Abstract

A new species of Xuaniella, described herein as X. thailandensis, was collected in northern Thailand. This species is characterized by tiny to small basidiomata, a white pileus, subglobose to ellipsoid basidiospores, and the absence of hymenial cystidia. Xuaniella thailandensis differs from X. urbica in having a white pileus, longer basidiospores, and one- to two-spored basidia. A molecular phylogenetic analysis based on combined sequences of the internal transcribed spacer (ITS), nuclear ribosomal large subunit (nrLSU), and the second largest subunit of RNA polymerase II (rpb2) supports the monophyly of X. thailandensis within the genus Xuaniella. The introduction of this new species is therefore justified by both morphological evidence and molecular data. A detailed description, illustrations, color photographs, and a phylogenetic tree showing the placement of X. thailandensis are provided.

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How to Cite

Suwannarach, N., Meepol, K. & Kumla, J. (2026) Xuaniella thailandensis (Porotheleaceae, Agaricales), a new macrofungus from northern Thailand. Phytotaxa 769 (2): 163–173. https://doi.org/10.11646/phytotaxa.769.2.5