Hermatomycetaceae Locq., Mycol. gén. struct. (Paris): 202 (1984).

MycoBank number: MB 80193; Index Fungorum number: IF 80193; Facesoffungi number: FoF 08251, 27 species.

Saprobic on various plants. Sexual morph: Undetermined. Asexual morph: Conidiomata sporodochial, pulvinate, dark brown to black. Conidiophores mononematous, pale brown. Conidiogenous cells monoblastic, integrated, terminal, cylindrical. Conidia dimorphic, lenticular conidia ellipsoidal, muriform, cylindrical, hyaline to brown, trans-septate.

TypeHermatomyces Speg.

NotesHermatomycetaceae was informally proposed by Locquin (1984) and later formalized by Hashimoto et al. (2017b) to accommodate the single genus Hermatomyces. Hermatomycetaceae is monotypic, similar to several other families in Pleosporales (Koukol et al. 2018). In previous studies, Hermatomyces was placed within ascomycota as ‘incertae sedis’ (Wijayawardene et al. 2012), while Doilom et al. (2017) and Tibpromma et al. (2016a) suggested it belongs in Lophiotremataceae based on phylogenetic analyses using LSU, rpb-2, SSU, and tef1. Morphologically, Hermatomyces is characterized by lenticular to cylindrical, muriform conidia, often with subhyaline to pale brown peripheral cells, and dark brown central cells. Conidia are cylindrical and comprise 1–4 columns with 2–11 cells and are irregularly pigmented (Castañeda & Heredia 2000, Doilom et al. 2017, Hashimoto et al. 2017b).