Novel fungal species associated with Arundo donax (Poales, Poaceae) in Jiangxi, China

Arundo donax is a gramineous plant with economic value and green energy potential. However, the fungal resources of A. donax have rarely been explored. In 2025, fungi on A. donax were collected and isolated from wetlands in Jiangxi Province, China. Two saprobic fungal isolates were identified based on morphological characteristics and multigene phylogeny, combined with DNA sequence data of the internal transcribed spacer (ITS), part of the large subunit nuclear rRNA gene (LSU), the translation elongation factor 1-alpha gene ( tef 1-α), and the second largest subunit of the RNA polymerase II gene ( rpb 2). Two new species, Lentimurispora arundinis and Stachylidium arundinis , are reported. Illustrations, detailed descriptions, and in-depth phylogenetic analyses of all identified species are provided.