| Label | Id | |
|---|---|---|
| Cosmochilus | 643456 | |
| Critoniopsis | 434641 | |
| Crumomyia | 1743461 | |
| Cryptodacus | 43404 | |
| Cryptophis | 1194343 | |
| Ctenanthe | 94346 | |
| Ctenochelidae | 464347 | |
| Cubanola | 43467 | |
| Cyanaeorchis | 1454349 | |
| Cyanostegia | 664347 | |
| Cyanthillium | 434644 | |
| Cyclolopha | 443486 | |
| Cymbium | 543400 | |
| Cyptobunus | 703434 | |
| Cyrilla | 4340 |