Plant debris are habitat favoring the growth of various microbial species. Over the course of our mycological surveys in Jiangxi and Yunnan Provinces, China, eight new
Distoseptispora
species, viz.
D. gasaensis
,
D. guanshanensis
,
D. jinghongensis
,
D. longnanensis
,
D. menghaiensis
,
D. menglunensis
,
D. nanchangensis
, and
D. yichunensis
collected on dead branches of unidentified plants, were introduced by morphological and molecular phylogenetic analyses. Multi-locus (LSU, ITS,
TEF1
, and
RPB2
) phylogenetic analyses were performed using maximum-likelihood and Bayesian inference to infer their taxonomic positions within
Distoseptispora
. Both molecular phylogenetic analyses and morphological characters supported them as eight independent taxa within
Distoseptispora
. This work improves our understanding of the diversity of
Distoseptispora
in southern China.
IMPORTANCE
Distoseptispora
as a single genus in
Distoseptisporaceae
was introduced by morphological and phylogenetic analyses. Members of this genus occur mainly as asexual morphs, forming effuse, hairy colonies on decaying wood, plant stems, bamboo culms, and fallen leaves and shafts in terrestrial and freshwater habitats. In the present study, saprobic hyphomycetes from plant debris were investigated, and eight new
Distoseptispora
species were introduced based on morphology and phylogenetic analyses of LSU, ITS,
TEF1
, and
RPB2
sequence data. This study provides important data on the species diversity, ecological environment, and geographical area of
Distoseptispora
, greatly updates the classification of
Distoseptispora
, and improves our understanding of the taxonomy of
Distoseptispora
.