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Crepatura ellipsospora gen. et sp. nov. in Phanerochaetaceae (Polyporales, Basidiomycota) bearing a tuberculate hymenial surface

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A new wood-inhabiting fungal genus, Crepatura, typified by C. ellipsospora sp. nov., is proposed based on a combination of morphological features and molecular evidence. The genus is characterized by an annual growth habit, resupinate basidiocarps with smooth to irregularly tuberculate hymenial surface, a monomitic hyphal system with thick-walled generative hyphae bearing both clamp connections and simple septa and ellipsoid, hyaline, thick-walled, smooth, negative in Melzer’s, acyanophilous basidiospores measuring 6.5–7.5 × 4–5 μm. Sequences of ITS and LSU nrRNA gene regions of the studied samples were generated, and phylogenetic analyses were performed with maximum likelihood, maximum parsimony, and Bayesian inference methods. The phylogenetic analyses based on molecular data of ITS+nLSU sequences showed that Crepatura belonged to the Phanerochaetaceae family and nested into the Donkia clade. The result demonstrated that the genus Crepatura formed a monophyletic lineage with a strong support and phylogenetically was closely related to Pirex concentricus.

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The research was supported by the National Natural Science Foundation of China (Project No. 31700023), the Yunnan Agricultural Foundation Projects (2017FG001-042), the Science Foundation of Southwest Forestry University (Project No. 111715), and the Science Foundation of Education Department in Yunnan (2018JS326).

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Correspondence to Chang-Lin Zhao.

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Section Editor: Yu-Cheng Dai

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Ma, X., Zhao, CL. Crepatura ellipsospora gen. et sp. nov. in Phanerochaetaceae (Polyporales, Basidiomycota) bearing a tuberculate hymenial surface. Mycol Progress 18, 785–793 (2019).

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