Mycosphaerellales » Mycosphaerellaceae


Graminopassalora U. Braun, C. Nakash., Videira & Crous, in Videira, Groenewald, Nakashima, Braun, Barreto, de Wit & Crous, Stud. Mycol. 87: 307 (2017)

            Index Fungorum number: IF 822591; Facesoffungi number: FoF 08504, 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Associated with leaf spot. Sexual morph: Unknown. Asexual morph: Mycelium internal, forming stromata of variable shape and size, usually well-developed, substomatal to immersed, brown. Conidiophores in small to very large fascicles, arising from stromata, through stomata or erumpent, erect, subcylindrical, straight to curved, sinuous, slightly geniculate, unbranched, septate, pale to dark brown, thin-walled, smooth to rough-walled, sometimes reduced to conidiogenous cells. Conidiogenous cells integrated, terminal, with a single to several conspicuous conidiogenous loci, holo- to polyblastic circular in outline, thickened and darkened, usually barely protuberant. Conidia formed singly, ellipsoid-ovoid, obovoid, short obclavate, 0–3-septate, occasionally slightly constricted at the septa, subhyaline to pale brownish, thin-walled, smooth to rough walled, rounded at hila, thickened and darkened (adapted from Videira et al. 2017).


Type species: Graminopassalora graminis (Fuckel) U. Braun, C. Nakash., Videira & Crous


Notes: Graminopassalora graminis was previously known as Passalora graminis which was not congeneric with the type of Passalora. Graminopassalora can be distinguished from Passalora based on DNA sequence data. Graminopassalora is a distinct genus in Mycosphaerellaceae. LSU, ITS and RPB2 sequences are available in GenBank for Graminopassalora.


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