Abstract

Phlebia s.l. (Polyporales, Basidiomycota) accommodates numerous species of wood-inhabiting fungi within the phylum Basidiomycota. The present study employs the morphological and phylogenetic approaches to revise the generic and species classification of Phlebia s.l. and surveys the species diversity. The phylogenetic analyses were performed using multiple gene regions viz. the internal transcribed spacer (ITS), the large subunit nuclear ribosomal RNA gene (nLSU), the translation elongation factor 1-α (tef1), the small subunit of mitochondrial rRNA gene (mtSSU), the glyceraldehyde 3-phosphate dehydrogenase (GAPDH), RNA polymerase II largest subunit (rpb1), and RNA polymerase II second largest subunit (rpb2). We overall recognize twenty genera of Phlebia s.l., including three new genera viz. Ceriporiopsoides, Phlebicolorata, and Pseudophlebia, seven new species viz. Crustodontia rhododendri, Hydnophlebia fissurata, Luteoporia straminea, Merulius sinensis, Mycoaciella brunneospina, Phlebia niveomarginata, and P. poroides and seventeen new combinations viz. Ceriporiopsoides guidella, C. lagerheimii, Hydnophlebia acanthocystis, H. capsica, H. fimbriata, Merulius fuscotuberculatus, M. nantahaliensis, M. tomentopileatus, Mycoacia tuberculata, Mycoaciella uda, Phlebicolorata alboaurantia, Ph. brevispora, Ph. pseudoplacenta, Ph. rosea, Pseudophlebia lindtneri, Ps. semisupina, and Ps. setulosa. Descriptions, illustrations, phylogenetic trees to show the placements, and notes of new taxa are provided.

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