Pleopunctum xizangense sp. nov. (Pleosporales, Phaeoseptaceae) and Pseudolophiostoma yunnanense sp. nov. (Pleosporales, Lophiostomataceae), and a new record of Pleopunctum pseudoellipsoideum on Fagales

Abstract

Pleosporales is the largest order of Dothideomycetes and is widely distributed in terrestrial and aquatic environments. During a survey of saprobic fungi in southwestern China, we collected and isolated some Pleosporales taxa. Based on morphological comparisons and multi-gene (SSU - ITS - LSU - tef 1) phylogenetic analyses, we describe two new species, Pleopunctum xizangense and Pseudolophiostoma yunnanense, as well as a new host record, Pleopunctum pseudoellipsoideum, that were collected from the plant family Fagales.

Pseudolophiostoma yunnanense was found in its asexual state, the first such account for this genus. In this study, we compare and discuss morphologically similar species and phylogenetically related taxa, providing comprehensive illustrations and descriptions of the isolates.