| Collector | Luteyn, J.L. |
| Number | 8536 |
| Collected with | S.A. Mori |
| Country | Ecuador |
| Subpart | Napo |
| County | |
| Locality | Parq. Nac. Yasuni, Anangu. Swamp forest along Rio Anangu (black water) near junction with Rio Napo |
| Coordinates | 0° 31' S 76° 33' W |
| Minimum elevation (m) | 270 |
| Maximum elevation (m) | 270 |
| Start date | 1982/06/17 |
| End date | 1982/06/17 |
| Family | Marantaceae |
| Identification | Calathea crotalifera Watson |
| Determined by | H. Kennedy |
| Identification qualifier | |
| Field notes | Herb. Petiole 1 m long; blade 0.75 m. Inflorescence bracts yellow-green. Fruits blue |
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