Pruniphilomyces Crous & Bulgakov, in Crous et al., Fungal Systematics and Evolution 6: 215 (2020).
Index Fungorum number: IF 835101; Facesoffungi number: FoF 11205, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Associated with leaf spot. Sexual morph: Ascomata pseudothecial, densely aggregated, amphigenous, immersed to erumpent, globose, black. Asci aparaphysate, stipitate, clavate-cylindrical, with eight biseriate, slightly curved, hyaline, unequally bicellular ascospores. Asexual morph: Caespituli hypophyllous, fasciculate, arising from an erumpent, brown pseudoparenchymatal stroma. Conidiophores subcylindrical, medium brown, thick-walled, finely verruculose, unbranched, straight to geniculate-sinuous, septate. Conidiogenous cells integrated, terminal and intercalary, subcylindrical with obtuse ends, brown, finely verruculose; scars, thickened, darkened, with visible pore. Conidia solitary, brown, thin-walled, guttulate, finely verruculose, gently curved or straight, obclavate, apex subobtuse, base obconically truncate, euseptate; hilum thickened and darkened (adapted from Crous et al. 2020).
Type species: Pruniphilomyces circumscissus (Sacc.) Crous & Bulgakov
Notes: Pruniphilomyces is characterised by pseudothecial, densely aggregated ascomata, clavate-cylindrical asci and unequally bicellular ascospores. The asexual morph is characterised by hypophyllous, fasciculate caespituli, subcylindrical, medium brown, thick-walled conidiophores, terminal and intercalary, subcylindrical conidiogenous cells and solitary, brown, thin-walled, guttulate conidia. Pruniphilomyces is morphologically and phylogenetically a distinct genus in Mycosphaerellaceae. Molecular markers available include ITS, LSU and RPB2.
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