| Collector | Lawesson, J. E. |
| Number | 39752 |
| Collected with | Laessoe, T. & Jorgensen, P. M. |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Añangu, Río Napo. Trail westward from CEPE buildings to the igapó forest, close to Río Añangu. Mostly terra firme. |
| Coordinates | 0° 31' S 76° 23' W |
| Minimum elevation (m) | 300 |
| Maximum elevation (m) | 300 |
| Start date | 1983/07/05 |
| End date | 1983/07/05 |
| Family | Rubiaceae |
| Identification | Rudgea japurensis Müll.Arg. |
| Determined by | D. Zappi |
| Identification qualifier | |
| Field notes | Shrub 1 m. Very branched. Calyx green. Corolla white. New leaves in june 1983, fruits in march 1983. |
|