Multi-locus phylogeny reveals two new species of Exidia ( Auriculariales , Basidiomycota ) from China

Exidia glandulosa is a cosmopolitan species, and it was commonly reported from China. Seventeen specimens with close resemblance to the species by having blackish, gelatinous basidiocarps were analyzed based on morphological and molecular data. Phylogenetic analyses were performed by the combined ITS+nLSU dataset and the combined ITS+nLSU+ TEF1-a + RPB2 dataset, and 20 ITS, 20 nLSU, 22 TEF1-a , and 20 RPB2 sequences were newly generated. Seventeen specimens were gathered into three different lineages in phylogenies, and they were identified as three species, E. glandulosa s. str. and two new species, E. reflexa and E. subglandulosa , respectively. The two new species differ from E. glandulosa s. str. by the absence of papillae on hymenial surface, and E. reflexa differs from E. subglandulosa by obvious effused-reflexed basidiocarps and smaller basidia and basidiospores. Detailed characteristics with morphological photos of two new species were provided here.