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 Euphorbianae Takht. ex Reveal (1992) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820) Order Thymelaeales Willk. (1854) see Order Malvales Juss. ex Bercht. & J.Presl (1820) Family Thymelaeaceae Juss. (1789), nom. cons. - mezereum family Subfamily Aquilarioideae see Tribe Aquilarieae Horan. (1847) Tribe Microsemmateae see Subfamily Octolepidoideae Gilg Genus Lethedon Spreng. (1807)