Plant Kingdom Haeckel (1866) - plants
   Division Ascomycota H.C. Bold (1957), nom. inval. see Phylum Ascomycota Caval.-Sm. (1998)
     Class Ascomycetes G.Winter (1880) see Phylum Ascomycota Caval.-Sm. (1998)
       Order Erysiphales Warm. (1884)
         Family Erysiphaceae Sred. (1873), nom. cons.