| Collector | Brandbyge, J. |
| Number | 33223 |
| Collected with | Asanza, E. & Werling, L. & Leth-Nissen, S. & Larrea, F. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Río Wai si ayá. 1 km upstream from the outlet in Río Aguarico. Primary forest, in some parts dominated by palms. |
| Coordinates | 0° 15' S 76° 21' W |
| Minimum elevation (m) | 300 |
| Maximum elevation (m) | 300 |
| Start date | 1981/08/06 |
| End date | 1981/08/06 |
| Family | Olacaceae |
| Identification | Heisteria acuminata subsp. intermedia P. Jørg. |
| Determined by | Jorgensen, P. M. (MO), 2001. |
| Identification qualifier | |
| Field notes | Tree along riverside, 8 m. Enlarged calyx red. |