| Collector | McDowell, T. |
| Number | 4350 |
| Collected with | D. Gopaul & J. Bowdre |
| Country | Guyana |
| Subpart | |
| County | |
| Locality | Varima-Waini Region: Aranka Head. Mixed lowland forest, distrubed areas around farms. |
| Coordinates | 7° 25' N 60° 32' W |
| Minimum elevation (m) | 107 |
| Maximum elevation (m) | 107 |
| Start date | 1991/04/10 |
| End date | 1991/04/10 |
| Family | Annonaceae |
| Identification | Unonopsis glaucopetala R.E.Fr. |
| Determined by | Dr. Paul Maas |
| Identification qualifier | |
| Field notes | Tree ±8 m, 0.3 m dbh; flower buds green; n.v.: "Black Yariyari". |
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