Capnodiales » Mycosphaerellaceae

Neopseudocercosporella

Neopseudocercosporella Videira & Crous, in Videira, Groenewald, Braun, Shin & Crous, Stud. Mycol. 83: 80 (2016)

 Index Fungorum number: IF 816820; Facesoffungi number: FoF 08524, 2 morphological species (Species Fungorum 2021), 2 species with molecular data.

Phytopathogenic, causing leaf spots. Mycelium internal, hyaline, septate, branched, stromata almost absent to well-developed. Sexual morph: Ascomata pseudothecial, mycosphaerelloid, single to aggregated, black, immersed, becoming erumpent, globose, with an apical ostiole. Peridium comprising medium brown cells of textura angularis. Asci aparaphysate, fasciculate, bitunicate, subsessile, obovoid to narrowly ellipsoid. Ascospores, straight to fusoid-ellipsoid, hyaline, guttulate, thin-walled, with subobtuse ends, medianly 1- septate. Asexual morph: Conidiophores solitary or grouped, erumpent through the cuticle or emerging through stomata, hyaline, sometimes faintly pigmented, smooth, simple, straight, slightly curved or geniculate-sinuous, usually aseptate, i.e. reduced to conidiogenous cells, thin-walled, smooth. Conidiogenous cells hyaline, sub cylindrical to geniculate-sinuous, with inconspicuous conidiogenous loci, unthickened, neither darkened nor refractive, mostly truncate. Conidia solitary, hyaline or rarely slightly pigmented, thin-walled, smooth, straight to flexuous, sub cylindrical to obclavate, with apex obtuse to subacute and base truncate, sometimes somewhat obconically, one- to multiseptate, hilum not thickened or darkened (Adapted from Videira et al. 2016).

 

Type species: Neopseudocercosporella capsellae (Ellis & Everh.) Videira & Crous

 

Notes: Neopseudocercosporella was introduced by Videira and Crous in Videira et al. (2016) with N. capsellae as type species. Neopseudocercosporella is characterized by pseudothecial mycosphaerelloid ascomata, obovoid to ellipsoid asci, straight to fusoid-ellipsoid 1 septate ascospores. The asexual morph is coelomycetous. Neopseudocercosporella is a distinct genus in Mycosphaerellaceae.

 

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