Poaceascoma Phookamsak & K. D. Hyde 2015

Poaceascoma Phookamsak & K. D. Hyde Notes. The genus Poaceascoma, first introduced by Phookamsak and Hyde (2015) in Phookamsak et al. (2015), as saprobic fungal group on Poaceae and Po. helicoides was designated as the type of the genus. Currently, 17 species are recognized in MycoBank (Accession date: March 10, 2025) for Poaceascoma. Poaceascoma species are usually characterized by semi-immersed to erumpent, globose to subglobose ascomata with short to long papillae, often surrounded by a turf-like structure (Phookamsak et al. 2015). Ascus fissitunicate, bitunicate, elongate-cylindrical usually contain eight filiform, hyaline, multi-septate ascospores. Poaceascoma species are mainly reported from Thailand, but have recently also been recorded from Australia, China, Hungary, South Korea and Taiwan (Hyde et al. 2018; Imrefi et al. 2024; Liu et al. 2025). These species are mainly reported from dead stems or roots of herbaceous plants (Poaceae) or submerged wood in freshwater ecosystems (Phookamsak et al. 2015; Luo et al. 2016; Crous et al. 2020; Boonmee et al. 2021; Zang et al. 2023).