| Clethraceae | |
Purdiaea angustifolia
| C. Wright ex Griseb. | Cat. Pl. Cub. 53 | 1866 |
| Clethraceae | |
Purdiaea belizensis
| (A.C. Sm. & Standl.) J.L. Thomas | J. Arnold Arbor. 42(1): 110 | 1961 |
| Clethraceae | |
Purdiaea bissei
| Berazaín | Willdenowia 34(1): 293–294, f. 1–2 | 2004 |
| Clethraceae | |
Purdiaea cubensis
| (A. Rich.) Urb. | Repert. Spec. Nov. Regni Veg. 22: 366 | 1926 |
| Clethraceae | |
Purdiaea ekmanii
| Vict. | Contr. Inst. Bot. Univ. Montreal 63: 61 | 1948 |
| Clethraceae | |
Purdiaea maestrensis
| Borhidi & Catasús | Acta Bot. Acad. Sci. Hung. 25(1–2): 45–47, f. 3 | 1979 |
| Clethraceae | |
Purdiaea microphylla
| Britton & P. Wilson | Bull. Torrey Bot. Club 42: 389 | 1915 |
| Clethraceae | |
Purdiaea moaensis
| Vict. | Contr. Inst. Bot. Univ. Montreal 63: 60 | 1948 |
| Clethraceae | ** |
Purdiaea monodynama
| Griseb. | Cat. Pl. Cub. 53 | 1866 |
| Clethraceae | |
Purdiaea nipensis
| Vict. & León | Contr. Inst. Bot. Univ. Montreal 63: 55 | 1948 |
| Clethraceae | |
Purdiaea nutans
| Planch. | London J. Bot. 5: 251, pl. 9 | 1846 |
| Clethraceae | |
Purdiaea ophiticola
| Vict. | Contr. Inst. Bot. Univ. Montreal 63: 56 | 1948 |
| Clethraceae | |
Purdiaea parvifolia
| (Vict.) J.L. Thomas | Contr. Gray Herb. 186: 61 | 1960 |
| Clethraceae | |
Purdiaea shaferi
| Britton & P. Wilson | Bull. Torrey Bot. Club 42: 389 | 1915 |
| Clethraceae | |
Purdiaea stenopetala
| Griseb. | Abh. Königl. Ges. Wiss. Göttingen 9: 45 | 1860 |
| Clethraceae | |
Purdiaea stereosepala
| J.L. Thomas | Contr. Gray Herb. 186: 65–67 | 1960 |
| Clethraceae | |
Purdiaea velutina
| Britton & P. Wilson | Bull. Torrey Bot. Club 42: 389 | 1915 |
| Clethraceae | |
Purdiaea weberbaueri
| (Gilg) Mattick | Notizbl. Bot. Gart. Berlin-Dahlem 12: 398–399 | 1935 |