| Brazil | | | Dodson, C.H. | 1992 | Checklist of the Orchids of the Western Hemisphere | | draft: |
| Colombia | | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Colombia | | | Dodson, C.H. | 1992 | Checklist of the Orchids of the Western Hemisphere | | draft: |
| Colombia | Santander | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Ecuador | | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Ecuador | | | Dodson, C.H. | 1992 | Checklist of the Orchids of the Western Hemisphere | | draft: |
| Ecuador | | | Luteyn, J. L. | 1999 | Páramos, a checklist of plant diversity, geographical distribution, and botanical literature | Mem. New York Bot. Gard. | 84: viii–xv, 1–278 |
| Ecuador | Carchi | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Carchi | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Ecuador | Carchi | | Jørgensen, P. M. & C. Ulloa Ulloa | 1994 | Seed plants of the high Andes of Ecuador—A checklist | AAU Rep. | 34: 1–443 |
| Ecuador | Loja | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Loja | | Jørgensen, P. M. & C. Ulloa Ulloa | 1994 | Seed plants of the high Andes of Ecuador—A checklist | AAU Rep. | 34: 1–443 |
| Ecuador | Morona-Santiago | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Napo | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Pastaza | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Ecuador | Pastaza | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Pichincha | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Ecuador | Pichincha | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Sucumbíos | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Zamora-Chinchipe | | Jørgensen, P. M. & C. Ulloa Ulloa | 1994 | Seed plants of the high Andes of Ecuador—A checklist | AAU Rep. | 34: 1–443 |
| Ecuador | Zamora-Chinchipe | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Peru | | | Brako, L. & J. L. Zarucchi | 1993 | Catalogue of the flowering plants and gymnosperms of Peru | Monogr. Syst. Bot. Missouri Bot. Gard. | 45: i–xl, 1–1286 |
| Peru | | | Garay, L. A. | 1978 | 225(1). Orchidaceae (Cypripedioideae, Orchidoideae, Neottioideae) | Fl. Ecuador | 9: 1–305 |
| Peru | | | Schweinfurth, C. | 1958 | Orchidaceae, Orchids of Peru | Fieldiana, Bot. | 30(1): 1–260 |
| Peru | | | Dodson, C.H. | 1992 | Checklist of the Orchids of the Western Hemisphere | | draft: |