| Dendrophylax porrectus (Rchb. f.) Carlsward, Whitten & N.H. Williams, 2003 |
| Dendrorchis Thouars, 1822 |
| Dendrorchis carea (Brongn.) Kuntze, 1891 |
| Deppia Raf., 1837 |
| Deppia mexicana Raf., 1837 |
| Diacrium Benth., 1881 |
| Diacrium bicornutum (Hook.) Benth., 1881 |
| Diacrium bicornutum var. indivisum (Bradford ex Griseb.) Cogn., 1898 |
| Diacrium bidentatum (Lindl.) Hemsl., 1883 |
| Diacrium bigibberosum (Rchb. f.) Hemsl., 1883 |
| Diacrium bilamellatum (Rchb. f.) Hemsl., 1883 |
| Diacrium bivalvatulum Schltr., 1923 |
| Diacrium indivisum Broadway, 1895 |
| Diacrium venezuelanum Schltr., 1919 |
| Dichaea Lindl., 1833 |
| Dichaea brachypoda Rchb. f., 1866 |
| Dichaea glauca (Sw.) Lindl., 1833 |
| Dichaea graminoides (Sw.) Lindl., 1833 |
| Dichaea intermedia Ames & Correll, 1943 |
| Dichaea liebmannii Rchb. f., 1879 |