Phylum Ascomycota Caval.-Sm. (1998) - sac fungi Subphylum Saccharomycotina O.E. Erikss. & Winka (1997) - budding yeasts Class Saccharomycetes O.E. Erikss. & Winka (1997), nom. inval. see Class Saccharomycetes G.Winter (1880) 1 Order Saccharomycetales Luerss. (1877)