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Open Access Rhomboidia wuliangshanensis gen. & sp. nov. from southwestern China

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This article is Open Access under the terms of the Creative Commons CC BY licence.

A new, white-rot, poroid, wood-inhabiting fungal genus, Rhomboidia, typified by R. wuliangshanensis, is proposed based on morphological and molecular evidence. Collected from subtropical Yunnan Province in southwest China, Rhomboidia is characterized by annual, stipitate basidiomes with rhomboid pileus, a monomitic hyphal system with thick-walled generative hyphae bearing clamp connections, and broadly ellipsoid basidiospores with thin, hyaline, smooth walls. Phylogenetic analyses of ITS and LSU nuclear RNA gene regions showed that Rhomboidia is in Steccherinaceae and formed as distinct, monophyletic lineage within a subclade that includes Nigroporus, Trullella, and Flabellophora .

Keywords: POLYPORALES; RESIDUAL POLYPOROID CLADE; TAXONOMY; WOOD-ROTTING FUNGI

Document Type: Research Article

Publication date: January 13, 2020

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