| Collector | Christensen, H. M. |
| Number | 388 |
| Collected with | F. L. Apu |
| Country | Malaysia |
| Subpart | SARAWAK |
| County | |
| Locality | 4th division, Kelabit Highlands. Disturbed open secondary forest around Pa Dalih |
| Coordinates | 3° 40' N 115° 50' E |
| Minimum elevation (m) | 1000 |
| Maximum elevation (m) | 1000 |
| Start date | 1993/03/23 |
| End date | 1993/03/23 |
| Family | Euphorbiaceae |
| Identification | Macaranga costulata Pax. |
| Determined by | van Welzen, P.C. (L.)1999. |
| Identification qualifier | |
| Field notes | Tree some 8 m. tall. Bark is greyish - blackish. Twigs and small branches have a clear orange-rosa latex from core wood. Uses: Leaves are used to dye rattan black. Wood for timber - good roof supporters. Name in Kelabit language: Mirirr |