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 Malvanae Takht. (1967) see Order Malvales Juss. ex Bercht. & J.Presl (1820) Order Malvales Juss. ex Bercht. & J.Presl (1820) Family Sterculiaceae Vent. (1807), nom. cons. - cacao family see Family Malvaceae Juss. (1789), nom. cons. Subfamily Byttnerioideae Burnett Tribe Byttnerieae DC. (1824) 1 Genus Rulingia R.Br. (1820), nom. cons. 2 Genus Commersonia J.R.Forst. & G.Forst. (1776) 3 Genus Byttneria Loefl. (1758), nom. cons. 4 Genus Ayenia C. L. (1756)