Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Agaricomycotina Doweld (2001) Class Tremellomycetes Doweld (2001) Order Cystofilobasidiales Fell, Roeijmans & Boekhout (1999) Family Mrakiaceae Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout (2015) Genus Udeniomyces Nakase & Takem. (1992)