Basidiome gasteroid with peridium wholly or partially enclosing the gleba. Gleba pinkish brown, sublamellate, labyrinthoid or loculate, with empty chambers. Hyphal system monomitic; consisting of inflated or gelatinized generative hyphae, lacking clamp-connexions. Stipe-columella present or absent. Spore heterotropic, iso- or heterodiametric, with regular facets, pinkish brown, smooth. Hymenophoral trama regular, gelatinized or not. Peridiopellis a repent epicutis. Development angiocarpic or hemiangiocarpic. Hypogeal or epigeal. Type genus: Richoniella Costant. & Dujour.

Richoniellaceae was erected by Jülich (1982: 388) to accommodate the gasteroid, statismosporic genera related to the agaricoid family Entolomataceae Kotl. & Pouz. The family comprises two genera, namely the widespread yet rare genus, Richoniella Costant. & Dufour, characterized by hypogeal, sessile gasterocarps, and the South American, secotioid genus, Rhodogaster Horak. Two species of Richoniella are here recorded from Victoria for the first time.