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Issue: Vol. 479 No. 2: 8 January 2021
Type: Article
Published: 2021-01-08
DOI: 10.11646/phytotaxa.479.2.1
Page range: 147–159
Abstract views: 31
PDF downloaded: 35

Trechispora daweishanensis and T. xantha spp. nov. (Hydnodontaceae, Trechisporales) found in Yunnan Province of China

Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, P.R. China.
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, P.R. China.
College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P.R. China.
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming 650224, P.R. China. College of Biodiversity Conservation, Southwest Forestry University, Kunming 650224, P.R. China.
Basidiomycetes phylogeny taxonomy Trechisporales wood-inhabiting fungi Fungi

Abstract

Two wood-inhabiting fungal species, Trechispora daweishanensis and T. xantha spp. nov. are proposed based on morphological features and molecular evidence. Trechispora daweishanensis is characterized by basidiomata with an annual growth habit, a tuberculate hymenophore, a monomitic hyphal system with clamped generative hyphae and ellipsoid, hyaline, thin-walled, smooth basidiospores measuring 3.8–5 × 2.7–3.5 µm. Trechispora xantha is characterized by resupinate, cracked basidiomata with a buff-coloured hymenial surface, a monomitic hyphal system and ellipsoid, hyaline, thin-walled, smooth basidiospores measuring 4.3–5.7 × 3.2–4 µm. Sequences of ITS and nLSU gene regions of the studied samples were generated. The phylogenetic analysis based on molecular data of ITS+nLSU sequences supported the novelty of these two species. Furthermore, we provide a key to the known species of Trechispora in China.