Eriomyces Huanraluek, Thambugala & K.D. Hyde in Hyde et al., Fungal Diversity 100: 146 (2020).

MycoBank number: MB 556538; Index Fungorum number: IF 556538; Facesoffungi number: FoF 06151; one phylogenetically and morphologically defined species (Hyde et al. 2020b).

Saprobic on dead twigs of Hevea brasiliensis in terrestrial, lowland to montane tropical to habitats. Ascomata scattered to somewhat aggregate, immersed to erumpent, brown-black to greyish black, applanately wart-shaped to drop-shaped or angular, ostiolate, ostiole more or less eccentric, with periphyses. Involucrellum present apically, dark brown to carbonized, paraplectenchymatous in thin sections. Excipulum prosoplectenchymatous, hyaline to pale brown. Hamathecium comprising 1–3 µm wide, branched cellular pseudoparaphyses. Asci polyspored, bitunicate, fissitunicate, clavate, long-pedicellate, with indistinct tholus and ocular chamber. Ascospores densely arranged, oblong, sometimes slightly curved, hyaline, aseptate, smooth-walled. Conidiomata not observed.

Type species: Eriomyces heveae Huanraluek, Thambugala & K.D. Hyde in Hyde et al., Fungal Diversity 100: 147 (2020).

Notes: This monospecific genus is characterized by the unusual, polyspored, clavate asci with long stipe, deviating from the other genera in this family in which ascomata are known. In the original description, the ostioles were given as central but based on the published photographic plate (Hyde et al. 2020b: Fig. 92) they appear to be irregularly excentric, also shown by the irregular shape of the ascomata.