| Collector | Christensen, H. M. |
| Number | 1278 |
| Collected with | |
| Country | Malaysia |
| Subpart | SARAWAK |
| County | |
| Locality | 2nd division, Lubok Antu District, river Delok. On slope in secondary forest near Nanga Sumpa. |
| Coordinates | 1° 20' N 112° 10' E |
| Minimum elevation (m) | 200 |
| Maximum elevation (m) | 200 |
| Start date | 1993/06/26 |
| End date | 1993/06/26 |
| Family | Annonaceae |
| Identification | Polyalthia motleyana (Hook. |
| Determined by | Bygrave, P. |
| Identification qualifier | |
| Field notes | Tree some 4 m. tall. Uses: Very good for boat sticks "Suar". Name in Iban language: Semukau. |
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