Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Magnoliopsida Brongn. (1843)
     Subclass Dilleniidae Takht. ex Reveal & Tahkt. (1993) see Order Dilleniales DC. ex Bercht. & J.Presl (1820)
       Superorder Theanae R.Dahlgren ex Reveal (1993) see Order Ericales Bercht. & J.Presl (1820)
         Order Theales Lindl. (1833) see Order Ericales Bercht. & J.Presl (1820)
           Family Tetrameristaceae Hutch. (1959)
             Genus Pentamerista B. Maguire, in B. Maguire et al. (1972)