Pseudomassariaceae Senan. & K.D. Hyde, fam. nov., Index fungorum number: IF551208

Saprobic on recently dead twigs attached to the trees, appearing as black dots, below small raised areas of bark, opening through long fissures. Sexual morph: Ascomata perithecial, scattered, solitary or aggregated, immersed, depressed globose to ellipsoid, coriaceous, black, ostiolate, papillate. Ostiolar papilla short, cylindrical, wide at the apex, periphysate. Peridium comprising strongly compressed, narrow, light to medium brown, thin-walled cells of textura angularis. Hamathecium comprising numerous, apically narrow, basally wide, hyaline paraphyses. Asci 8-spored, unitunicate, clavate to fusoid, short pedicellate, apically rounded, with J+, or J– apical ring. Ascospores biseriate or partially uniseriate, hyaline, broadly ellipsoid, oblong or narrowly clavate, mostly apiosporous, with a rounded to subconical, small, lower cell or equally uniseptate, straight or curved, thick-walled, smooth-walled. Asexual morph: Hyphomycetous, Setae erect, dark brown, straight to flexuous, arising from superficial hyphae, branched at base, subcylindrical, tapering to obtuse apex, 3–7-septate, basal cell slightly swollen. Conidiophores subcylindrical to setiform, with radially lobed basal cells, pale brown, smooth, arising from superficial mycelium, straight to flexuous, 1–10-septate. Conidiogenous cells terminal or lateral, polyblastic, subcylindrical to somewhat clavate, pale brown, smooth, with 1–4 denticulate loci. Conidia lageniform, distal end free, truncate, rostrate at proximal end, pale brown, with a subhyaline transverse band at equatorial zone, smooth, guttulate, aseptate.

Type: Pseudomassaria Jacz., Bull. Herb. Boissier 2: 663 (1894)

 Notes: Single gene sequence analyses of ITS and LSU regions in Jaklitsch and Voglmayr (2012) indicate a separate
taxonomic grouping for the Pseudomassaria, Leiosphaerella clade. Senanayake et al. 2015 introduced a new family Pseudomassariaceae to accommodate Leiosphaerella and Pseudomassaria.