Species diversity and systematic taxonomy of Sarcosomataceae (Ascomycota, Pezizales), with an emphasis on subtropical regions of China

The aim of this study is to update the species diversity of Sarcosomataceae in subtropical China. Taxonomic and phylogenetic studies were carried out through ecological observation, morphological examination, and molecular phylogenetic analyses inferred from five molecular loci (ITS + nrLSU + rpb 1 + rpb 2 + tef 1-α). By using Bayesian inference (BI) and maximum likelihood (ML) methods, six lignicolous species were identified, including four novel taxa: Plectania damingshanensis sp. nov., Plectania huapingensis sp. nov., Pseudoplectania aureonigrescens sp. nov., and Urnula auricularioides sp. nov.; and two new distribution records: Plectania lutea and Urnula ailaoshanensis.

Keys to species of Plectania, Pseudoplectania, and Urnula were provided.