| Collector | Holm-Nielsen, L. B. |
| Number | 19798 |
| Collected with | Jaramillo, J. & Coello, F. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Río Tiputini. 10 km upstream from Río Napo. Riverside rain forest. |
| Coordinates | 0° 49' S 75° 35' W |
| Minimum elevation (m) | 250 |
| Maximum elevation (m) | 250 |
| Start date | 1979/08/24 |
| End date | 1979/08/24 |
| Family | Rubiaceae |
| Identification | Psychotria tessmannii Standley |
| Determined by | Taylor, C.M. (MO), 2001. |
| Identification qualifier | |
| Field notes | Shrub 3 m. Fruits yellow (all branches green). |
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