Posidoniomyces Vohník & Réblová, in Vohník et al., MycoKeys 55: 72 (2019).

MycoBank number: MB 830266; Index Fungorum number: IF 830266; Facesoffungi number: FoF 08151, 1 morphological species (Species Fungorum 2020), 1 species with molecular data.

Type speciesPosidoniomyces atricolor Vohník & Réblová, in Vohník et al., MycoKeys 55: 72 (2019).

NotesPosidoniomyces was introduced by Vohník et al. (2019) with Posidoniomyces atricolor as the type species. Posidoniomyces atricolor was isolated as root mycobionts of the dominant and endemic Mediterranean seagrass Posidonia oceanica from marine habitat. The morphological characters in vivo are brown, septate hyphae, forming intracellular microsclerotia in the hypodermis of the terminal fine roots and finger-like pseudoparenchymatous net on the surface of roots, while two distinct colonial morphotypes (compact and mycelial) are formed in cultures (see Vohník et al. 2019). The sexual morph is undetermined.


  • Posidoniomyces atricolor