| Collector | Balslev, H. |
| Number | 6578 |
| Collected with | C. Grández & Guillermo Criollo |
| Country | Peru |
| Subpart | LORETO |
| County | |
| Locality | Region Loreto, Distrito Maipuco. Rio Urituyacu, caserio Velasco ca. 40 km NE of outlet into Rio Maronon. Tropical rain forest on very flat land behind the village with frequent patches of swampy ground. |
| Coordinates | 4° 44' 55'' S 75° 8' 24'' W |
| Minimum elevation (m) | 180 |
| Maximum elevation (m) | 180 |
| Start date | 2003/08/08 |
| End date | 2003/08/08 |
| Family | Arecaceae |
| Identification | Oenocarpus mapora H.Karst. |
| Determined by | |
| Identification qualifier | |
| Field notes | Caespitose, stem 14 m x 8-10 cm; lvs. 8-10 sheath 53 cm, petiole 12 cm, blade 250 x 140 cm flat, with 70 pinnae pr. side. Peduncle erect 10 cm long, rachis 10 cm long erect, rachillae 60 cm long. |
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