| Name | Williamsia borneensis Merrill |
| Authorship | Merrill |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Williamsia |
| GUID | urn:lsid:ipni.org:names:770536-1 |
| Citation | 1929 Univ. Calif. Publ. Bot. 15: 282 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Williamsia borneensis Merrill |
| Identification made in | [no date] (2) |