| Collector | Lawesson, J. E. |
| Number | 39611 |
| Collected with | Laessoe, T. & Jorgensen, P. M. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Añangu, Río Napo. Trail to terra firme line. Tropical rain forest. |
| Coordinates | 0° 31' S 76° 23' W |
| Minimum elevation (m) | 260 |
| Maximum elevation (m) | 300 |
| Start date | 1983/05/06 |
| End date | 1983/05/06 |
| Family | Rubiaceae |
| Identification | Psychotria tenuicaulis K. Krause |
| Determined by | Taylor, C.M. (MO), 2003. |
| Identification qualifier | |
| Field notes | Treelet 1 m. Inflorescence a panicle of racemes, green with flowers. Corolla white. Inflorescence terminal. Fruits green. In rather wet dark primary rainforest, near trail. |
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