| Summary: | <i>Distoseptispora</i> is one of the sporidesmium-like taxa with great variation in asexual morphology and delineation of species. Phylogenetic analyses of four gene regions LSU, ITS, <i>TEF1α</i>, and <i>RPB2</i> revealed the placement of several sporidesmium-like species in <i>Distoseptispora</i> (<i>Distoseptisporaceae</i>, <i>Distoseptisporales</i>, <i>Sordariomycetes</i>), collected on submerged decaying twigs from streams in China and Thailand. Based on morphological examination and molecular DNA data, six new species, <i>Distoseptispora amniculi</i>, <i>D. atroviridis</i>, <i>D. effusa</i>, <i>D. fusiformis</i>, <i>D. hyalina</i>, and <i>D. verrucosa</i>, are proposed. Among them, <i>D.</i> <i>hyalina</i> is the first sexual morph confirmed in the genus. A new geographical record is reported for <i>D. lignicola</i> in China. Conidial length proved to be of less taxonomic significance for some <i>Distoseptispora</i> species, whereas the type of conidial septa is informative at species level.
|
|---|