| Deppeopsis hernandezii (Lorence) Borhidi & Strancz., 2012 |
| Deppeopsis tenuiflora (Benth.) Borhidi & Strancz., 2012 |
| Deppeopsis tubana (Borhidi) Borhidi & Strancz., 2012 |
| Dialypetalantheae Reveal, 2012 |
| Dialypetalanthoideae Reveal, 2012 |
| Didymaea Hook. f., 1873 |
| Didymaea alsinoides (Cham. & Schltdl.) Standl., 1938 |
| Didymaea alsinoides var. mollis Standl., 1938 |
| Didymaea crassifolia Borhidi, 2003 |
| Didymaea floribunda Rzed., 1983 |
| Didymaea hispidula L.O. Williams, 1975 |
| Didymaea ixtepejiensis Borhidi & E. Martínez, 2012 |
| Didymaea linearis Standl., 1929 |
| Didymaea mexicana Hook. f., 1873 |
| Didymaea microflosculosa L.O. Williams, 1975 |
| Didymaea microphylla L.O. Williams, 1975 |
| Didymaea naniflora Borhidi & E. Martínez, 2012 |
| Diodella Small, 1913 |
| Diodella apiculata (Willd.) Delprete, 2004 |
| Diodella crassifolia (Benth.) Borhidi, 2006 |