; Sp. Pl. [Linnaeus] 2: 701 (1753) s. str.
Distribution: tropical, subtropical and temp. regions of the Old World (86 South Africa). Many species still listed here belong in other genera but have not been re-analyzed genetically.
= Anthalogea Raf.; New Fl. [Rafinesque] 4: 88 (1836)
= Brachytropis Rchb.; Consp. Regn. Veg. [H.G.L.Reichenbach] 120 (1828)
= Corymbula Raf.; New Fl. [Rafinesque] 4: 88 (1836)
= Isolophus Spach; Hist. Nat. Vég. [Spach] 7: 112 (1839)
= Microlophium Fourr.; Ann. Soc. Linn. Lyon, Sér. 2, 17: 195 (1869)
= Phylax Noronha; Verh. Batav. Genootsch. Kunst. 5: ed. I. Art. IV. 3 (1790)
= Plostaxis Raf.; New Fl. [Rafinesque] 4: 87 (1836)
= Psychanthus Raf.; Specchio Sci. 1: 116 (1814)
= Semeiocardium Zoll.; Tijdschr. Ned.-Indië 17: 245 (1858)
= Senegaria Raf.; Actes Soc. Linn. Bordeaux 6: 264 (1834)
= Sexilia Raf.; New Fl. [Rafinesque] 4: 87 (1836)
= Tricholophus Spach; Hist. Nat. Vég. [Spach] 7: 114 (1839)