| Crossosomataceae | |
Apacheria
| C.T. Mason | Madroño 23(3): 105–108, f. 1, 2a | 1975 |
| Crossosomataceae | |
Crossocoma
| Hook. | London J. Bot. 7: 392 | 1848 |
| Crossosomataceae | |
Crossosoma
| Nutt. | Proc. Acad. Nat. Sci. Philadelphia 4(1): 7–8 | 1848 |
| Crossosomataceae | * |
Forsellesia
| Greene | Erythea 1(10): 206 | 1893 |
| Crossosomataceae | ! |
Glossopetalon
| A. Gray | Smithsonian Contr. Knowl. 5(6): 29–30, pl. 12, f. B | 1853 |
| Crossosomataceae | |
Velascoa
| Calderón & Rzed. | Acta Bot. Mex. 39: 54 | 1997 |