| Collector | Lojtnant, B. |
| Number | 12054 |
| Collected with | Molau, U. & Madison, M. |
| Country | Ecuador |
| Subpart | CARCHI |
| County | |
| Locality | Above La Esperenza, 5 km W of El Carmelo on road to Tulcán. Virgin cloud forest, dominated by Clusia. |
| Coordinates | 0° 41' N 77° 38' W |
| Minimum elevation (m) | 3200 |
| Maximum elevation (m) | 3450 |
| Start date | 1979/04/09 |
| End date | 1979/04/09 |
| Family | Orchidaceae |
| Identification | Pleurothallis zephyrina Rchb.f. |
| Determined by | Luer, C. (MO), 2002. |
| Identification qualifier | |
| Field notes | Sepals and lateral petals hyaline pale greenish yellow with a median brownish line. Lip yellow green, central part brownish. |