Eriocercospora Deighton, Mycol. Pap. 118: 5 (1969).
Index Fungorum number: IF 8200; Facesoffungi number: FoF 08605, 3 morphological species (Species Fungorum 2021), molecular data unavailable.
Fungicolous, hyperparasitic dematiaceous hyphomycetes. Mycelium superficial; hyphae branched, septate, pigmented, thin-walled, smooth. Stromata lacking. 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: Eriocercospora was introduced by Deighton (1969) with E. balladynae as type species. 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). E. 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 (colourless) while Eriocercospora has euseptate, pigmented conidia. Eriocercospora is currently considered as a doubtful genus in Mycosphaerellaceae. Molecular data is needed to confirm the correct taxonomic position.