Monotypic Russulales genera

Byssoporia is a fungal genus in the family Albatrellaceae. The genus is monotypic, containing the single widespread corticioid species Byssoporia terrestris. There are several varieties: sartoryi, lilacinorosea, aurantiaca, sublutea, and parksii. These differ in bruising reaction, presence of clamp connections in the hyphae, or hyphal morphology. It was previously thought to belong in the Atheliaceae, but a molecular phylogenetics found it to belong in the Albatrellaceae.

Stalpersia is a genus of mushrooms in the family Auriscalpiaceae. The genus is monotypic, containing the single species Stalpersia orientalis.

Clavicorona is a fungal genus in the family Clavariaceae. The genus was circumscribed by Maxwell Stanford Doty in 1947, who included the species C. pyxidata, C. cristata, C. taxophila, and C. candelabrum. E.J.H.Corner added another five species in 1950: C. candelabrum, C. colensoi, C. javanica, C. mairei, and C. tuba. He included C. dichotoma in 1970.

Pseudoxenasma is a fungal genus in the family Russulaceae, described in 1976. The genus is monotypic and contains the single species Pseudoxenasma verrucisporum, found in Sweden.

Dichopleuropus is a fungal genus in the family Lachnocladiaceae. A monotypic genus, it contains the single species Dichopleuropus spathulatus, found in Malaysia. Dichopleuropus was circumscribed by English mycologist Derek Reid in 1965.

Dentipratulum is a genus of fungus in the family Auriscalpiaceae. This is a monotypic genus, containing the single species Dentipratulum bialoviesense.