Capnodiales » Mycosphaerellaceae


Neocercosporidium Videira & Crous, in Videira et al., Stud. Mycol. 87: 325 (2017).

Index Fungorum number: IF 822596; Facesoffungi number: FoF 08518, 1 morphological species (Species fungorum 2021), 1 species with molecular data.

Phytopathogenic. Sexual morph: Unknown. Asexual morph: Caespituli amphigenous, punctiform, scattered to dense, dark brown to blackish. Mycelium both internal and external, hyphae branched, septate, subhyaline to medium olivaceous brown, thin-walled, smooth. Stromata well-developed, substomatal to intraepidermal, immersed, brown to dark brown. Conidiophores arising from stromata, occasionally from superficial hyphae, in small to large and loose to dense fascicles, when dense almost coremioid, rarely solitary, smooth, olivaceous to dark olivaceous brown throughout or paler at the tips, thin-walled, erect, straight, subcylindrical to strongly geniculate-sinuous, simple or occasionally branched, sometimes reduced to conidiogenous cells. Conidiogenous cells integrated, terminal, proliferating sympodially, occasionally percurrently, conidiogenous loci minute but slightly thickened, darkened and refractive, front view resembling minute circles. Conidia solitary, subhyaline to pale olivaceous or brownish, smooth, thin-walled, multi-septate, obclavate-cylindrical, apex obtuse to sub obtuse, base grounded to short obconically truncate, hila slightly thickened, darkened and refractive (Adapted from Videira et al. 2017).


Type species: Neocercosporidium smilacis (Thüm.) U. Braun, C. Nakash., Videira & Crous


Notes: Neocercosporidium was introduced by Videira et al. (2017) with N. smilacis as type species. N. smilacis was previously known as Cercospora smilacis and was accommodated in Passalora s. lat. based on the cylindrical-obclavate pigmented conidia and conspicuous conidiogenous loci appearing as tiny circles in front view (Videira et al. 2017). In the phylogenetic analyses of Videira et al. (2017), C. smilacis formed a distinct lineage distant from other Passalora species.  Hence, C. smilacis was transferred to a new genus Neocercosporidium as N. smilacis. Neocercosporidium is currently a well-supported genus in Mycosphaerellaceae.


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