Taxonomy of Neostagonosporella on Chimonobambusa with descriptions of two new taxa

Neostagonosporella species are described as saprobic or parasitic fungi on bamboos (Poaceae) with only three taxa, in which N. sichuanensis and N. bambusicola are recorded in China on dead leaves, living stems and branches, and N. sasae is reported from Japan on the living leaves of Sasa borealis and unidentified bamboos. Chimonobambusa is an important bamboo resource in China, and the diversity of fungal species inbabiting Chimonobambusa bamboos remains unresolved. In this study, we describe two newly discovered species, viz. Neostagonosporella fulvomarginata , and N. flavispora , based on morphological examinations and phylogenetic analyses characterized using morphological traits and multi-locus phylogeny based on the internal transcribed spacer region (ITS) with the intervening 5.8S rRNA gene, the large subunit of the rRNA gene (LSU), the 18S ribosomal RNA gene (SSU), and translation elongation factor 1-alpha gene ( TEF 1-α). In addtition, two known species of N. bambusicola and N. sichuanensis have also been described as a new record for the host plants, with the asexual morph of N. bambusicola being firstly described.