| Collector | Lawesson, J. E. |
| Number | 43339 |
| Collected with | Thomas Laessoe & Peter Moller Jorgensen |
| Country | Ecuador |
| Subpart | NAPO |
| County | |
| Locality | Río Yasuní, Garza Cocha. Primary rain forest near the beginning of and on both sides of lake Garza Coche. Terra firme. |
| Coordinates | 1° 5' S 75° 47' W |
| Minimum elevation (m) | 200 |
| Maximum elevation (m) | 200 |
| Start date | 1983/04/08 |
| End date | 1983/04/08 |
| Family | Orchidaceae |
| Identification | Maxillaria chacoensis Dodson |
| Determined by | C.H. Dodson, 1990 (MO) |
| Identification qualifier | aff. |
| Field notes | Epiphyte. Tepals yellow. Labellum yellow with red central vein. . |