| Corytoplectus Oerst., 1858 |
| Corytoplectus oaxacensis Ram.-Roa, C. Chávez & Rodr.-Flores, 2009 |
| Cyrtanthemum Oerst., 1858 |
| Cyrtanthemum hirsutum Oerst., 1858 |
| Diastema Benth., 1845 |
| Diastema gloxiniflorum Regel, 1853 |
| Diastema racemiferum Benth., 1845 |
| Diastema rupestre Brandegee, 1914 |
| Dicyrta Regel, 1849 |
| Dicyrta candida (Lindl.) Hanst., 1856 |
| Dicyrta foliosa (E. Morren) Hanst., 1865 |
| Dicyrta mimuliflora (Regel) Hanst., 1865 |
| Dicyrta parviflora Seem., 1857 |
| Dicyrta warszewicziana Regel, 1849 |
| Didymocarpoideae Arn., 1832 |
| Drymonia Mart., 1829 |
| Drymonia antirrhina (DC.) Seem., 1854 |
| Drymonia bicolor Lindl., 1838 |
| Drymonia chiapensis Brandegee, 1914 |
| Drymonia jacquinii G. Don, 1838 |