| Collector | Poulsen, A. D. |
| Number | 122 |
| Collected with | |
| Country | Brunei |
| Subpart | TEMBURONG |
| County | |
| Locality | Batu Apoi Forest Reserve. Setap shale formation. Ridge W. of Kuala Belalong Field Studies Center slope. In Danish Plot, mixed dipterocarp forest. |
| Coordinates | 4° 33' N 115° 9' E |
| Minimum elevation (m) | 250 |
| Maximum elevation (m) | 250 |
| Start date | 1991/04/01 |
| End date | 1991/06/01 |
| Family | Orchidaceae |
| Identification | Apostasia wallichii R. Brown |
| Determined by | |
| Identification qualifier | |
| Field notes | "Life form: terrestrial herb, 50 cm; 5 tepals white, recurvate, no distinct labellum." |
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