| 376 | 66.1 | Cycnoches barthiorum G. F. Carr & Christenson |
| 377 | 66.2 | Cycnoches chlorochilon Clotsch. |
| 378 | 66.3 | Cycnoches loddigesii Lindley |
| 379 | 66.4 | Cycnoches peruvianum Rolfe |
| 380 | 66.5 | Cycnoches ventricosum Bateman |
| 381 | 66.6 | Cycnoches ventricosum var. warscewiczii Rchb. f. syn Cycnoches warscewiczii Rchb. f. |
| 1742 | 66.7 | Cycnoches lehmanii Rchb. f. |