| Collector | Holm-Nielsen, L. B. |
| Number | 3666 |
| Collected with | Jeppesen, S. & Lojtnant, B. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | LOJA |
| County | |
| Locality | Road Loja - Zamora, 1 km W of the pass (km 13). Dry grass slopes, shrubby mountain slopes and elfin forest. |
| Coordinates | 4° 0' S 79° 9' W |
| Minimum elevation (m) | 2725 |
| Maximum elevation (m) | 2750 |
| Start date | 1973/04/17 |
| End date | 1973/04/17 |
| Family | Orchidaceae |
| Identification | Odontoglossum retusum Lindl. |
| Determined by | |
| Identification qualifier | |
| Field notes | Terrestrial, on a steep, rather dry, sunexposed, clayey-stony slope. Flowers scentless, red. The sepals a little bit darker outside than inside. |
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