Macrodiplodiopsidaceae Voglmayr, Jaklitsch & Crous, IMA Fungus 6(1): 178 (2015).
MycoBank number: MB 812794; Index Fungorum number: IF 812794; Facesoffungi number: FoF 08291, 7 species.
Pathogens or saprobes. Sexual morph: Ascomata immersed, black, solitary to aggregated, globose. Asci cylindric-clavate to broadly clavate. Ascospores 1-seriate and partially overlapping, obovoid, straight to inequilateral, asymmetric, dark brown, eudistoseptate, constricted at septa, surrounded by a mucoid sheath. Asexual morph: Coelomycetous. Conidiomata pycnidial, single or gregarious, globose to collabent, dark brown to black, unilocular, ostiolate. Ostiole single, circular, papillate. Conidiophores reduced to conidiogenous cells. Conidiogenous cells annellidic, indeterminate, cylindrical, hyaline, smooth- and thick-walled. Conidia ellipsoid to obovoid (or clavate), or subglobose to oval, pale brown or hyaline, 3-distoseptate or aseptate, occasionally with a longitudinal septum, base truncate, apex obtuse, thick-walled, surrounded by a large gelatinous sheath (Sutton 1980, Crous et al. 2015a, Wijayawardene et al. 2016a).
Type – Macrodiplodiopsis Petr.
Notes – Macrodiplodiopsidaceae was introduced with Macrodiplodiopsis Petr. as the type genus. Crous et al. (2015a) showed that Pseudochaetosphaeronema larense, the type species of Pseudochaetosphaeronema also resides in Macrodiplodiopsidaceae. Wijayawardene et al. (2020) agreed with this placement. Wijayawardene et al. (2018) treated Pseudochaetosphaeronema in Pleosporales genera incertae sedis. Wijayawardene et al. (2018) listed Pseudomonodictys in Macrodiplodiopsidaceae but we do not accept it in this family.