Pseudothielavia X. W. Wang & Houbraken

Pseudothielavia X. W. Wang & Houbraken Notes. The genus Pseudothielavia was initially proposed by Wang and Houbraken (2019), to place Coniothyrium terricola, which is initially isolated from soil habitat. In recent years several species were introduced in this genus and currently four species epithets are listed in MycoBank (Accession date: March 10, 2025) for Pseudothielavia. Ascomata of these species are solitary to aggregated, globose or subglobose, superficial or submerged. They are typically non-ostiolate, though some species develop an ostiole at maturity. Peridium is brown, composed of textura epidermoidea, and may appear semi-translucent or translucent. Asci are clavate to pyriform, eight-spored and evanescent. Ascospores are 1 - celled, olivaceous brown at maturity, smooth-walled, fusiform in shape and possess an apical, oblique or lateral germ pore (Wang et al. 2019). Species reported for Pseudothielavia are widely distributed and have been reported from Chile, China, Egypt, Japan, Papua New Guinea, and USA mainly from soil habitats (Wang et al. 2019; Zhang et al. 2021; Noguchi et al. 2022; Hussien et al. 2023).