Phylum Basidiomycota R.T.Moore (1980) - basidiomycetes Subphylum Pucciniomycotina R. Bauer, Begerow, J.P. Samp., M. Weiss & Oberw. (2006) Class Microbotryomycetes R. Bauer, Begerow, J.P. Samp., M. Weiss & Oberw. (2006) Genus Spencerozyma Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout (2015), incertae sedis