| Collector | Holm-Nielsen, L. B. |
| Number | 19321 |
| Collected with | |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Mishuallí. Rain forest in the surroundings of the junction Río Mishuallí - Río Napo. |
| Coordinates | 1° 3' S 77° 41' W |
| Minimum elevation (m) | 500 |
| Maximum elevation (m) | 500 |
| Start date | 1979/08/13 |
| End date | 1979/08/14 |
| Family | Begoniaceae |
| Identification | Begonia maynensis A. DC. |
| Determined by | L. B. Smith. & Wasshausen |
| Identification qualifier | |
| Field notes | Leaves with glaucous areas between the veins. Fruits with brown wings. |