| Collector | Holm-Nielsen, L. B. |
| Number | 3603 |
| Collected with | Jeppesen, S. & Lojtnant, B. & Ollgaard, B. |
| Country | Ecuador |
| Subpart | ZAMORA-CHINCHIPE |
| County | |
| Locality | Road Loja - Zamora, km 17. Roadsides and steep slopes with montane forest. |
| Coordinates | 3° 59' S 79° 8' W |
| Minimum elevation (m) | 2400 |
| Maximum elevation (m) | 2400 |
| Start date | 1973/04/16 |
| End date | 1973/04/16 |
| Family | Orchidaceae |
| Identification | Pleurothallis antennifera Lindl. |
| Determined by | |
| Identification qualifier | |
| Field notes | Terrestrial. Flowers yellow-green, with a weak, sweet scent. Loosely tufted. The big lower sepal with purple- red small spots outside and inside. The two arms of the lip reddish tinted. |