| Celastrus tetramerus Standl., 1923 |
| Celastrus vulcanicola Donn. Sm., 1916 |
| Cheiloclinium Miers, 1872 |
| Cheiloclinium belizense (Standl.) A.C. Sm., 1940 |
| Crossopetalum P. Browne, 1756 |
| Crossopetalum densiflorum Lundell, 1984 |
| Crossopetalum eucymosum (Loes. & Pittier) Lundell, 1961 |
| Crossopetalum filipes (Sprague) Lundell, 1961 |
| Crossopetalum gaumeri (Loes.) Lundell, 1961 |
| Crossopetalum gentlei (Lundell) Lundell, 1961 |
| Crossopetalum glabrum Lundell, 1984 |
| Crossopetalum lanceifolium (Lundell) Lundell, 1984 |
| Crossopetalum latifolium (Sw.) Kuntze, 1891 |
| Crossopetalum managuatillo Crantz, 1766 |
| Crossopetalum minimiflorum Lundell, 1984 |
| Crossopetalum oxyphyllum (S.F. Blake) Lundell, 1961 |
| Crossopetalum parviflorum (Hemsl.) Lundell, 1961 |
| Crossopetalum parvifolium L.O. Williams, 1967 |
| Crossopetalum puberulum (Lundell) Lundell, 1961 |
| Crossopetalum rhacoma Crantz, 1766 |