Phaeocytostroma Petr. Annls. mycol. 19(1/2): 45 (1921)
Index Fungorum number: IF9298; 6 morphological species (Species Fungorum 2020), 4 species with sequence data.
Type species – Phaeocytostroma ambiguum (Mont.) Petr.
Notes – Several molecular studies have established the taxonomic placement of Phaeocytostroma within Diaporthaceae (Lamprecht et al. 2011, Verkley et al. 2014). The genus is characterised by their aseptate, brown, e-guttulate, cylindrical or ellipsoid, macroconidia with truncate base and fusiform, short or elongate microconidia.