| Name | Dryobalanops oblongifolia subsp. occidentalis P. S. Ashton |
| Authorship | P. S. Ashton |
| Rank | Subspecies |
| Placed in | Dryobalanops oblongifolia Dyer |
| Citation | 1978 Gard. Bull. Singapore 31(1): 26 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Dryobalanops oblongifolia subsp. occidentalis P. S. Ashton |
| Identification made in | [no date] (10) |