| Collector | Holm-Nielsen, L. B. |
| Number | 4142 |
| Collected with | Jeppesen, S. & Lojtnant, B. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | ZAMORA-CHINCHIPE |
| County | |
| Locality | Road Loja - Zamora, km 33. Dry rocky slopes with grass and scattered shrubs. |
| Coordinates | 3° 59' S 79° 4' W |
| Minimum elevation (m) | 1800 |
| Maximum elevation (m) | 1850 |
| Start date | 1973/04/21 |
| End date | 1973/04/21 |
| Family | Orchidaceae |
| Identification | Pleurothallis revoluta (Ruiz & Pav.)Garay |
| Determined by | |
| Identification qualifier | |
| Field notes | Terrestrial, shaded. Flowers pale green-yellowish, with a strong aromatic scent. Lateral petals red- brown. Labellum with many very small red-brown spots. |