Acrodryon
| Acrodryon Sprengel, Syst. Veg. 1: 386. 1824. | | TYPE: Acrodryon angustifolium (Loureiro) Sprengel (Cephalanthus angustifolius Loureiro) Lectotypified by Merrill, Trans. Amer. Philos. Soc., ser. 2. 24(2): 363. 1935. |
Axolus
| Axolus Rafinesque, Sylva Tellur. 61. 1838. | | TYPE: Axolus angustifolius (Loureiro) Rafinesque (Cephalanthus angustifolius Loureiro) = Acrodryon Sprengel 1824, by lectotypification. |
Eresimus
| Eresimus Rafinesque, Sylva Tellur. 61. 1838. | | TYPE: Eresimus stellatus (Loureiro) Rafinesque (Cephalanthus stallatus Loureiro) Lectotypified by Merrill, J. Wash. Acad. Sci. 5: 538. 1915. |
Silamnus
| Silamnus Rafinesque, Sylva Tellur. 60. 1838. | | TYPE: Silamnus procumbens (Loureiro) Rafinesque (Cephalanthus procumbens Loureiro) |