Fuscostagonosporaceae Jayasiri, Camporesi & K.D. Hyde, Fungal Divers. 87: 34 (2017).
MycoBank number: MB 553867; Index Fungorum number: IF 553867; Facesoffungi number: FoF 03780, 4 species.
Saprobic on dead stems. Sexual morph: Ascomata immersed, scattered, globose to subglobose. Ostiolar neck clypeate, central, short papillate, with periphyses. Peridium composed of pale brown, compressed cells. Hamathecium comprising trabeculate, branched, anastomosing, pseudoparaphyses, associated with gelatinous material. Asci bitunicate, fissitunicate, cylindrical, with a long stipe. Ascospores narrowly fusiform, hyaline, 1–3-septate, with a sheath covering entire spore. Asexual morph: Conidiomata pycnidial, immersed, scattered, depressed globose, ostiolate. Conidiomatal wall composed of thin-walled cells. Conidiophores reduced to conidiogenous cells. Conidiogenous cells doliiform, annellidic. Conidia globose, yellow to pale brown and 3-septate.
Notes – Fuscostagonosporaceae contains a single genus Fuscostagonospora. This family is characterised by having immersed, globose to subglobose ascomata, trabecular, branched pseudoparaphyses, and narrowly fusiform, hyaline ascospores with a sheath (Hyde et al. 2017). Although, Fuscostagonosporaceae was reported to have trabeculate pseudoparaphyses, some species of Fuscostagonospora have cellular pseudoparaphyses (e.g. Fuscostagonospora cytisi and F. camporesii, Hyde et al. 2017).