| Collector | Balslev, H. |
| Number | 10647 |
| Collected with | Madsen, E. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Puerto Francisco de Orellana (Coca), 17 km SW of the town at road along Río Napo. (Los Sorros). Tropical rain forest. |
| Coordinates | 0° 32' S 77° 0' W |
| Minimum elevation (m) | 300 |
| Maximum elevation (m) | 300 |
| Start date | 1976/11/06 |
| End date | 1976/11/06 |
| Family | Violaceae |
| Identification | Leonia crassa Smith & Fernández |
| Determined by | Hekking, W.H.A. (U), 1996. |
| Identification qualifier | |
| Field notes | Large tree to 20 m high. Flowers in bunches on the trunk, greenish-yellow. |
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