Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct. Class Magnoliopsida Brongn. (1843) Subclass Hamamelididae Takht. (1967) Superorder Casuarinanae Takht. (1997), nom. inval. see Superorder Casuarinanae Takht. ex Reveal & Doweld (1999) Order Casuarinales Bercht. & J.Presl (1820) see Order Fagales Engl. (1892) Family Casuarinaceae R.Br. (1814), nom. cons. - she-oak family Genus Gymnostoma L.A.S.Johnson (1980)