Morphological and Phylogenetic Analyses Reveal Three New Species of Distoseptispora (Distoseptisporaceae, Distoseptisporales) from Yunnan, China

Three new species of Distoseptispora, viz. D. mengsongensis, D. nabanheensis, and D. sinensis, are described and illustrated from specimens collected on dead branches of unidentified plants in Yunnan Province, China. Phylogenetic analyses of LSU, ITS, and TEF1 sequence data, using maximum-likelihood (ML) and Bayesian inference (BI), reveal the taxonomic placement of D. mengsongensis, D. nabanheensis, and D. sinensis within Distoseptispora. Both morphological observations and molecular phylogenetic analyses supported D. mengsongensis, D. nabanheensis, and D. sinensis as three new taxa. To extend our knowledge of the diversity of Distoseptispora-like taxa, a list of recognized species of Distoseptispora with major morphological features, habitat, host, and locality is also provided.

Automated summary

Three new species of Distoseptispora, namely D. mengsongensis, D. nabanheensis, and D. sinensis, were identified and illustrated based on specimens collected from unidentified plants in Yunnan Province, China. Phylogenetic analyses using LSU, ITS, and TEF1 sequence data confirmed the taxonomic placement of these three new taxa within Distoseptispora. Both morphological observations and molecular phylogenetic analyses supported the recognition of D. mengsongensis, D. nabanheensis, and D. sinensis as distinct species. Additionally, a list of recognized species of Distoseptispora, including major morphological features, habitat, host, and locality, was provided to enhance our understanding of the diversity of Distoseptispora-like fungi.