Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
       Superorder Celastranae Takht. (1967) see Order Celastrales Link (1829)
         Order Brexiales Lindl. (1833) see Order Celastrales Link (1829)
           1 Family Ixerbaceae Griseb. (1854), nom. inval. see Family Ixerbaceae Griseb. ex Doweld & Reveal (2008)
           2 Family Brexiaceae Loudon (1830) see Family Celastraceae R.Br. (1814), nom. cons.
           3 Family Rousseaceae DC. (1839)