| Harpalyce mexicana Rose, 1903 |
| Harpalyce pringlei Rose, 1903 |
| Harpalyce retusa Rose, 1903 |
| Harpalyce rupicola Donn. Sm., 1888 |
| Harpalyce sousae Arroyo, 1976 |
| Harpalyce torresii São-Mateus & M. Sousa, 2018 |
| Harpalyce yucatanense Miranda ex São-Mateus & M. Sousa, 2018 |
| Havardia Small, 1901 |
| Havardia acatlensis (Benth.) Britton & Rose, 1928 |
| Havardia albicans (Kunth) Britton & Rose, 1928 |
| Havardia brevifolia (A. Gray) Small, 1901 |
| Havardia campylacantha (L. Rico & M. Sousa) Barneby & J.W. Grimes, 1996 |
| Havardia elachistophylla (A. Gray ex S. Watson) L. Rico |
| Havardia leiocalyx (Standl.) Britton & Rose, 1928 |
| Havardia leptophylla (DC.) L. Rico |
| Havardia mexicana (Rose) Britton & Rose, 1928 |
| Havardia nelsonii Britton & Rose, 1928 |
| Havardia pallens (Benth.) Britton & Rose, 1928 |
| Havardia platyloba (Bertero ex DC.) Britton & Rose, 1928 |
| Havardia sonorae (S. Watson) Britton & Rose, 1928 |