| Arten: |
| Ornithocephalus aristatus Pupulin & Dressler |
| Ornithocephalus aurorae D.E.Benn. & Christenson |
| Ornithocephalus bicornis Lindl. |
| Ornithocephalus biloborostratus Salazar & R.González |
| Ornithocephalus bonitensis (Dodson) Toscano |
| Ornithocephalus brachystachys Schltr. |
| Ornithocephalus bryostachys Schltr. |
| Ornithocephalus castelfrancoi Pupulin |
| Ornithocephalus caveroi D.E.Benn. & Christenson |
| Ornithocephalus ciliatus Lindl. |
| Ornithocephalus cochleariformis C.Schweinf. |
| Ornithocephalus cryptanthus (C.Schweinf. & P.H.Allen) Toscano & Dressler |
| Ornithocephalus cujetifolia Barb.Rodr. |
| Ornithocephalus dalstroemii (Dodson) Toscano & Dressler |
| Ornithocephalus dodsonii R.Vásquez & T.Krömer |
| Ornithocephalus dolabratus Rchb.f. |
| Ornithocephalus dressleri (Toscano) Toscano & Dressler |
| Ornithocephalus ecuadorensis (Garay) Toscano & Dressler |
| Ornithocephalus escobarianus (Garay) Toscano & Dressler |
| Ornithocephalus estradae Dodson |
| Ornithocephalus garayi (D.E.Benn. & Christenson) Toscano & Dressler |
| Ornithocephalus gladiatus Hook. |
| Ornithocephalus grex-anserinus Dressler & Mora-Ret. |
| Ornithocephalus hoppii (Schltr.) Toscano & Dressler |
| Ornithocephalus inflexus Lindl. |
| Ornithocephalus iridifolius Rchb.f. |
| Ornithocephalus kalbreyerianus Kraenzl. |
| Ornithocephalus lankesteri Ames |
| Ornithocephalus lehmannii Schltr. |
| Ornithocephalus longilabris Schltr. |
| Ornithocephalus manabina Dodson |
| Ornithocephalus micranthus Schltr. |
| Ornithocephalus minimiflorus Senghas |
| Ornithocephalus montealegreae Pupulin |
| Ornithocephalus myrticola Lindl. |
| Ornithocephalus numenius Toscano & Dressler |
| Ornithocephalus obergiae Soto Arenas |
| Ornithocephalus oberonioides (Schltr.) Toscano & Dressler |
| Ornithocephalus patentilobus C.Schweinf. |
| Ornithocephalus polyodon Rchb.f. |
| Ornithocephalus powellii Schltr. |
| Ornithocephalus suarezii Dodson |
| Ornithocephalus torresii Salazar & Soto Arenas |
| Ornithocephalus tripterus Schltr. |
| Ornithocephalus tsubotae (P.Ortiz) Toscano & Dressler |
| Ornithocephalus urceilabris (P.Ortiz & R.Escobar) Toscano & Dressler |
| Ornithocephalus valerioi Ames & C.Schweinf. |
| Ornithocephalus vasquezii Dodson |
| Ornithocephalus zamoranus Dodson |