Mycosphaerellales » Mycosphaerellaceae

Paramycovellosiella

Paramycovellosiella Videira, H.D. Shin & Crous, in Videira et al., Stud. Mycol. 87: 327 (2017).

         Index Fungorum number: IF 822603; Facesoffungi number: FoF 08537 1 morphological species (Species Fungorum 2022), 1 species with molecular data.

Associated with leaf spot. Sexual morph: Unknown. Asexual morph: Caespituli hypophyllous, occasionally epiphyllous. Mycelium internal and external, olivaceous brown to olivaceous, septate, branched. Stromata lacking or rudimentary, composed only of a few brown swollen hyphal cells. Conidiophores in loose fascicles, emerging through stomata or as lateral branches of external hyphae, pale olivaceous brown throughout or paler at the apex, continuous or septate, straight to geniculate. Conidiogenous cells integrated, terminal or intercalary, pale olivaceous brown, smooth, mono- or polyblastic, determinate or proliferating sympodially, conidiogenous loci small, thickened and darkened, located on apex or shoulders. Conidia solitary or catenate, cylindrical, clavate, obclavate, straight to mildly curved, sub hyaline to pale olivaceous brown, aseptate to multiseptate, non-constricted at the septa, hila small, thickened, darkened and slightly protuberant, basal (terminal conidia) or at both ends (intercalary conidia and ramoconidia) (adapted from Videira et al. 2017).

 

Type species: Paramycovellosiella passaloroides (G. Winter) Videira, H.D. Shin &Crous

 

Notes: Paramycovellosiella accommodates mycovellosiella-like species that are not congeneric with Mycovellosiella. Paramycovellosiella is unique in producing catenate conidia. Paramycovellosiella is a distinct genus in Mycosphaerellaceae. Molecular markers available for Paramycovellosiella include ITS, LSU and RPB2.

 

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