Cystobasidiomycetes

The Cystobasidiomycetes are a class of fungi in the subdivision Pucciniomycotina of the Basidiomycota. Most species are known from their yeast states; hyphal states, when present, produce auricularioid basidia and are frequently parasites of other fungi. The class contains five orders as well as two families and one genus of uncertain disposition. An additional order, Cyphobasidiales, has been proposed to accommodate several lichenicolous species, but its separation from the Erythrobasidiales has not been demonstrated.