| Clethraceae | |
Alloiosepalum | Gilg | Notizbl. Bot. Gart. Berlin-Dahlem 11: 97 | 1931 |
| Scrophulariaceae | ! |
Bontia | L. | Sp. Pl. 2: 638 [as "938"] | 1753 |
| Scrophulariaceae | |
Bontia daphnoides | L. | Sp. Pl. 2: 638 [as "938"] | 1753 |
| Clethraceae | |
Costaea | A. Rich. | Hist. Fís. Cuba, Bot. 11: 75 | 1850 |
| Cyrillaceae | ! |
Cyrilla | Garden | Syst. Nat. (ed. 12) 2: 182 | 1767 |
| Cyrillaceae | |
Cyrilla antillana | Michx. | Fl. Bor.-Amer. 1: 158 | 1803 |
| Cyrillaceae | |
Cyrilla brevifolia | N.E. Br. | Trans. Linn. Soc. London, Bot. 6(1): 22, t. 1, f. 6–17 | 1901 |
| Cyrillaceae | ! |
Cyrilla racemiflora | L. | Syst. Nat. (ed. 12) 2: 182 | 1767 |
| Cyrillaceae | |
Cyrilla racemiflora var. brevifolia | (N.E. Br.) Maguire & Wurdack ex Steyerm. | Acta Bot. Venez. 2: 234 | 1967 |
| Cyrillaceae | |
Cyrilla racemiflora var. subglobosa | Fernald | Rhodora 46(542): 46–47, pl. 813, f. 1–2 | 1944 |
| Cyrillaceae | !! |
Cyrillaceae | Lindl. | Veg. Kingd. 445 | 1846 |
| Haemodoraceae | !! |
Haemodoraceae | R. Br. | Prodr. 299 | 1810 |
| Haemodoraceae | ! |
Lachnanthes | Elliott | Sketch Bot. S. Carolina 1: 47 | 1816 |
| Haemodoraceae | |
Lachnanthes caroliniana | (Lam.) Dandy | J. Bot. 70: 329 | 1932 |
| Myoporaceae | !! |
Myoporaceae | R. Br. | Prodr. 514 | 1810 |
| Clethraceae | |
Purdiaea | Planch. | London J. Bot. 5: 250 | 1846 |
| Clethraceae | |
Purdiaea belizensis | (A.C. Sm. & Standl.) J.L. Thomas | J. Arnold Arbor. 42(1): 110 | 1961 |
| Clethraceae | |
Schizocardia | A.C. Sm. & Standl. | Trop. Woods 32: 9 | 1932 |
| Clethraceae | |
Schizocardia belizensis | A.C. Sm. & Standl. | Trop. Woods 32: 9 | 1932 |
| Haemodoraceae | |
Xiphidium | Aubl. | Hist. Pl. Guiane 1: 33, pl. 11 | 1775 |
| Haemodoraceae | ! |
Xiphidium caeruleum | Aubl. | Hist. Pl. Guiane 1: 33, pl. 11 | 1775 |