Multi-locus phylogenetic analyses reveal eight novel species of Distoseptispora from 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.

Acrodictys-like wood decay fungi from southern China, with two new families Acrodictyaceae and Junewangiaceae.

During our continuous survey (2012-2016) of saprobic hyphomycetes from dead branches in the forest ecosystems of southern China, we collected several acrodictys-like species. Acrodictys-like species are characterized by darkly pigmented and muriform conidia produced from holoblastic conidiogenous cells on macronematous, mononematous, cylindrical and unbranched or infrequently branched conidiophores. Phylogenetic analyses of ncLSU, ncSSU, ITS and tub2 sequence data lead us to propose two novel families in Sordariomycetes, Acrodictyaceae and Junewangiaceae. In addition, a new species, Acrodictys hainanensis, two new combinations, Junewangia queenslandica and Distoseptispora martinii, three new Chinese records, Acrodictys liputii, A. peruamazonensis and Junewangia sphaerospora are introduced. Two names, Acrodictys globulosa and A. malabarica, are resurrected.