Neomycosphaerella Crous, in Crous et al., Persoonia 31: 195 (2013).
Index Fungorum number: IF 805814; Facesoffungi number: FoF 08520, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.
Foliicolous, pathogenic. Sexual morph: Ascomata immersed, subepidermal, frequently in a brown stroma, unilocular, in rows of 2–4, globose, with central ostiole; wall of 2–4 layers of brown textura angularis. Asci fasciculate, stipitate, 8-spored, with minute ocular chamber, obovoid, straight to slightly curved, hyaline. Ascospores tri- to multiseriate, hyaline, smooth, granular, medianly uniseptate; ascospores becoming brown and verruculose with age. Asexual morph: Unknown (adapted from Crous et al. 2013).
Type species: Neomycosphaerella pseudopentameridis Crous
Notes: Neomycosphaerella is characterised by immersed ascomata, fasciculate, stipitate, 8-spored asci, and tri- to multiseriate hyaline ascospores. Neomycosphaerella is only known by its sexual morph and is Mycosphaerella-like. Neomycosphaerella is phylogenetically related to Brunneosphaerella but the latter differs from Neomycosphaerella by producing ascospores that are pigmented, 3-septate, and with mucoid caps (Crous et al. 2013b). Neomycosphaerella is a distinct and well-supported genus in Mycosphaerellaceae. Molecular markers available for Neomycosphaerella are ITS, LSU, Actin, BTUB, Calmodulin, RPB2 and TEF-1.
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