Six Novel Species of Distoseptispora (Distoseptisporaceae, Distoseptisporales) and Helminthosporium (Massarinaceae, Pleosporales) Isolated from Terrestrial Habitats in Southern China

Saprobic hyphomycetous fungi exhibit high colonization density and diversity on rotting woody plant material. During our continuing mycological research in the forest ecosystem of Jiangxi, Fujian and Zhejiang provinces, China, several <i>Distoseptispora</i>-like and <i>Helminthosporium</i>-like strains were isolated from unidentified dead branches in terrestrial habitats. Based on morphological comparisons and multi-locus phylogenetic analyses using maximum-likelihood (ML) and Bayesian inference (BI), six novel species of <i>Distoseptispora</i> (<i>D. terrestris</i>, <i>D. wuyishanensis</i>, <i>D. zhejiangensis</i>) and <i>Helminthosporium</i> (<i>H. ganzhouense</i>, <i>H. jiangxiense</i>, <i>H. saprophyticum</i>) were introduced, and one known species, <i>H. velutinum</i> was reported. The species diversity within <i>Distoseptispora</i> and <i>Helminthosporium</i> was supplemented in this study.