| Aytoniaceae | |
Aytonia abyssinica
| (Gola) Cufod. | Phyton (Horn) 4: 78 | 1952 |
| Aytoniaceae | |
Aytonia appendiculata
| (Lehm. & Lindenb.) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia australis
| (Nees) G. Forst. ex Steph. | Hedwigia 28(2): 129 | 1889 |
| Aytoniaceae | |
Aytonia beccariana
| (Steph.) Cufod. | Phyton (Horn) 4: 78 | 1952 |
| Aytoniaceae | |
Aytonia chlorocarpa
| (Nees & Mont.) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | * |
Aytonia colsmanniana
| (Lehm. & Gottsche) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia cordata
| (Lehm. & Lindenb.) A. Evans | Trans. Connecticut Acad. Arts Sci. 8: 260 | 1891 |
| Aytoniaceae | |
Aytonia crenulata
| (Gottsche) Underw. | Bot. Gaz. 20(2): 66 | 1895 |
| Aytoniaceae | |
Aytonia elongata
| (Lindenb. & Gottsche) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia erythrosperma
| (Sull. ex Austin) Underw. | Bull. Illinois State Lab. Nat. Hist. 2(1): 43 | 1884 |
| Aytoniaceae | |
Aytonia evansii
| Haynes | Bull. Torrey Bot. Club 34(2): 57 | 1907 |
| Aytoniaceae | |
Aytonia eximia
| Schiffn. ex Steph. | Bot. Jahrb. Syst. 20: 300 | 1895 |
| Aytoniaceae | |
Aytonia extensa
| Steph. | Hedwigia 32: 17 | 1893 |
| Aytoniaceae | |
Aytonia fischeriana
| Steph. | Bot. Jahrb. Syst. 20: 301 | 1895 |
| Aytoniaceae | ** |
Aytonia fissiquama
| Steph. | Rev. Bryol. 20: 106 | 1893 |
| Aytoniaceae | |
Aytonia fissisquama
| Steph. | Mém. Soc. Sci. Nat. Math. Cherbourg 29: 209 | 1894 |
| Aytoniaceae | |
Aytonia intermedia
| (Lindenb. & Gottsche) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia italica
| (Sassi) Lindenb. | Musci Novi Scand. 291 | 1868 |
| Aytoniaceae | |
Aytonia jamaicensis
| Haynes | Bull. Torrey Bot. Club 34: 58 | 1907 |
| Aytoniaceae | |
Aytonia japonica
| Steph. | Bull. Herb. Boissier 5: 84 | 1897 |
| Aytoniaceae | |
Aytonia lanigera
| Spruce | Trans. & Proc. Bot. Soc. Edinburgh 15: 568 | 1885 |
| Aytoniaceae | |
Aytonia limbata
| (Hook. f. & Taylor) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia mexicana
| (Lindenb. & Gottsche) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia microcephala
| Steph. | Bot. Jahrb. Syst. 20: 301 | 1895 |
| Aytoniaceae | |
Aytonia peruviana
| (Nees & Mont.) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia polycarpon
| (Griff.) Steph. | Bot. Jahrb. Syst. 20(3): 301 | 1895 |
| Aytoniaceae | |
Aytonia rupestris
| J.R. Forst. & G. Forst. | Char. Gen. Pl. (ed. 2) 148, pl. 74 | 1776 |
| Aytoniaceae | |
Aytonia schimperi
| (Steph.) Cufod. | Phyton (Horn) 4: 78 | 1952 |
| Aytoniaceae | |
Aytonia subplana
| Spruce | Trans. & Proc. Bot. Soc. Edinburgh 15: 567 | 1885 |
| Aytoniaceae | |
Aytonia valida
| (Bisch.) Kuntze | Revis. Gen. Pl. 1: 143 | 1891 |
| Aytoniaceae | |
Aytonia wrightii
| (Sull.) Underw. | Bull. Illinois State Lab. Nat. Hist. 2(1): 43 | 1884 |