| Collector | Ollgaard, B. |
| Number | 9735 |
| Collected with | Balslev, H. |
| Country | Ecuador |
| Subpart | LOJA |
| County | |
| Locality | Amaluza. 5-10 km ENE of the village (Pasaje del Romerillo). Montane forest with 4-10 m high trees along river. |
| Coordinates | 4° 34' S 79° 23' W |
| Minimum elevation (m) | 2400 |
| Maximum elevation (m) | 2700 |
| Start date | 1976/09/23 |
| End date | 1976/09/23 |
| Family | Orchidaceae |
| Identification | Oncidium excavatum Lindl. |
| Determined by | C. Dodson, 1985 |
| Identification qualifier | |
| Field notes | On rocks. Flowers yellow with large brown spots. |
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