JoF, Vol. 9, Pages 178: Novelties in Microthyriaceae (Microthyriales): Two New Asexual Genera with Three New Species from Freshwater Habitats in Guizhou Province, China

JoF, Vol. 9, Pages 178: Novelties in Microthyriaceae (Microthyriales): Two New Asexual Genera with Three New Species from Freshwater Habitats in Guizhou Province, China

Journal of Fungi doi: 10.3390/jof9020178

Authors: Lingling Liu Jing Yang Si Zhou Xiaofeng Gu Jiulan Gou Quanquan Wei Meng Zhang Zuoyi Liu

Microthyriaceae is typified by the sexual genus Microthyrium, with eight asexual genera. Three interesting isolates were collected during our investigation of freshwater fungi from the wetlands in Guizhou Province, southwest China. Three new asexual morphs are identified. Phylogenetic analyses using LSU and ITS gene regions revealed the placement of these isolates in Microthyriaceae (Microthyriales, Dothideomycetes). Based on the morphology and phylogenetic evidence, two new genera, Paramirandina and Pseudocorniculariella, and three new species, Pa. aquatica, Pa. cymbiformis, and Ps. guizhouensis, are introduced. Among them, Pa. aquatica and Pa. cymbiformis are hyphomycetes; meanwhile, Ps. guizhouensis is the first coelomycete reported in Microthyriaceae. Descriptions and illustrations of the new taxa are provided, with a phylogenetic tree of Microthyriales and related taxa.