Three New Species and Three New Records of Arthoniaceae (Ascomycota, Arthoniales) from China

Based on morphological and phylogenetic analyses, during a study on the biodiversity of the lichenized fungi family Arthoniaceae in Yunnan, China, three new species of <i>Arthonia</i>, <i>Eremothecella</i>, and <i>Synarthonia</i> (<i>Arthonia yunnanensis</i> sp. nov., <i>A. pararubella</i> sp. nov., <i>Eremothecella pruinocarpa</i> sp. nov.) and three new Chinese records (<i>A. rubella</i>, <i>E. calamicola</i>, <i>Synarthonia inconspicua</i>) were reported in this present study. A phylogenetic analysis using maximum likelihood and Bayesian inference based on a two-gene dataset (mtSSU and RPB2) revealed that all these species form distinct independent clades. In addition, this study represents the first report of molecular sequences for the genus <i>Eremothecella</i>. Detailed descriptions, ecological and chemical characteristics, and illustrations for each species are provided.