Prosopidicolaceae Senan. & K.D. Hyde, Stud. Mycol. 86: 281 (2017)

MycoBank number: MB 821565; Index Fungorum number: IF 821565; Facesoffungi number: FoF 03502; 2 species.

Pathogenic on species of Fabaceae. Sexual morph: Undetermined. Asexual morph: Coelomycetous. Conidiomata pycnidial, rarely acervular, solitary or aggregated in a eustromatic stroma with one to several ostioles or astromatic, grey to black, erumpent to immersed. Peridium comprising grey-brown cells of textura angularis. Conidiophores reduced to conidiogenous cells or lining the whole inner layer of the wall, subcylindrical, branched, septate, straight to irregularly curved, base pale brown, becoming medium green-brown at apex. Conidiogenous cells mono- to polyphialidic, tightly aggregated, hyaline, smooth, ampulliform, subcylindrical to lageniform, prominent periclinal thickening, at times with percurrent proliferation. Conidia solitary, subhyaline to grey-brown, smooth, guttulate, straight to variously curved, ellipsoid to fusoid-ellipsoid, apex obtuse, base truncate to bluntly round (adapted from Senanayake et al. 2017a).

Type genusProsopidicola Crous & C.L. Lennox

Notes – Prosopidicolaceae was introduced by Senanayake et al. (2017a) for Prosopidicola species. The sexual morph has not been reported for this family and it is distinct from other families of Diaporthales in having pycnidial, rarely acervular, eustromatic conidiomata with one to several ostioles, mono- to polyphialidic, ampulliform, subcylindrical to lageniform conidiogenous cells with periclinal thickening and subhyaline to brown, ellipsoid to fusoid-ellipsoid conidia.