In this study, a novel endophytic fungus, Diaporthe orixae, and a new host record of Diaporthe caryae were obtained from a medicinal plant, Orixa japonica in southern China. Phylogenetic analyses based on a combination of ITS, tef1-α, β-tub, cal, and his3 datasets confirmed that D. orixae is a distinct species, which is sister to D. sackstonii (BRIP 54669b). Diaporthe orixae sp. nov. differs from D. sackstonii in having larger conidiomata and smaller conidiogenous cells and alpha conidia on morphological examination. The new species and new host record are reported with taxonomic descriptions and illustrations.
Pseudodactylaria fusiformis sp. nov. was collected during an investigation of freshwater fungi along a north-south latitudinal gradient in the Asian region. Evidence for the new species is provided by morphological comparison and sequence data analysis. Pseudodactylaria fusiformis differs from other species in having hyaline conidiophores and fusiform, 0–1-septate hyaline conidia without a sheath. Phylogenetic analysis based on combined ITS and LSU sequence data was carried out to determine the phylogenetic placement of the species. Six Pseudodactylaria taxa clustered together and formed a monotypic clade representing the genus, and five species are well recognized. Pseudodactylaria fusiformis and P. camporesiana share a sister relationship and they are phylogenetically distinct species. A detailed description and illustration are provided, as well as the comparisons with similar taxa.
Eight hyphomycetes were collected as part of an investigation into the diversity of hyphomycetous fungi in China. Based on morphology and multi-loci (LSU, ITS, tef1α, and rpb2) phylogenetic analyses, five new taxa, including a new Aquapteridospora species A. hyalina and four novel Distoseptispora species, viz D. aquisubtropica, D. septata, D. tropica, and D.wuzhishanensis were introduced in Distoseptisporales (Sordariomycetes). Two new habitat records, viz Distoseptispora pachyconidia and D. xishuangbannaensis were firstly reported. Also provided in this study are detailed descriptions of eight new collections and a revised phylogenetic tree for the Distoseptisporales.
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