Eriocercospora Deighton, Mycol. Pap. 118: 5 (1969).
Index Fungorum number: IF 8200; Facesoffungi number: FoF 08605, 3 morphological species (Species Fungorum 2022), no molecular data available.
Fungicolous, hyperparasitic dematiaceous hyphomycetes. Mycelium superficial; hyphae branched, septate, pigmented, thin-walled, smooth. Stromata lacking. Sexual morph: Unknown. Asexual morph: Conidiophores macronematous, mononematous, solitary, in vivo arising from superficial hyphae, lateral, erect, usually unbranched, continuous to septate, pigmented, thin-walled, smooth. Conidiogenous cells integrated, terminal and intercalary, sympodially proliferating, but usually not distinctly geniculate, conidiogenous loci subconspicuous, i.e. unthickened, not or barely protuberant, not or only slightly darkened-refractive. Conidia solitary, scolecosporous, transversely euseptate, pigmented, thin-walled, smooth or almost so, hila unthickened, not or barely darkened-refractive (adapted from Braun 2013).
Type species: Eriocercospora balladynae (Hansf.) Deighton
Notes: Crous and Braun (2003) re-examined the type material and several other specimens of E. balladynae. The authors reported that the original description of the conidiogenous loci (scars) provided by Deighton (1969), and which were compared with previous genus Mycovellosiella, are ambiguous. The loci of E. balladynae are only slightly darkened-refractive and not thickened nor conspicuously darkened as described by Deighton (1969). Eriocercospora balladynae is rather pseudocercospora-like. Crous and Braun (2003) suggested that Eriocercospora is possibly a synonym of Pseudocercospora but this hypothesis needs to be confirmed with DNA sequence data. Eriocercospora is phylogenetically related to Stenospora with type species Stenospora uredinicola (Deighton 1969), but differs in that the latter is mucedinaceous (colorless) while Eriocercospora has euseptate, pigmented conidia. The placement of Eriocercospora in Mycosphaerellaceae is doubtful. Molecular data is needed to confirm the correct taxonomic position.