| Collector | Larsen, K. |
| Number | 33580 |
| Collected with | Supee S.Larsen |
| Country | Thailand |
| Subpart | Peninsular |
| County | |
| Locality | Ranong: NW of Phato |
| Coordinates | 9° 50' N 98° 40' E |
| Minimum elevation (m) | 0 |
| Maximum elevation (m) | 0 |
| Start date | 1974/05/02 |
| End date | 1974/05/02 |
| Family | Melastomataceae |
| Identification | Memecylon merguicum King |
| Determined by | S.S.Renner |
| Identification qualifier | |
| Field notes | Shrub 3-4 m high |
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