| Name | Isopterygium papuanum Brotherus |
| Authorship | Brotherus |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Isopterygium |
| Citation | 1900 ["1901"] Fl. Schutzgeb. Sudsee (Lauterbach) 96 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Isopterygium papuanum Brotherus |
| Identification made in | [no date] (1), 2021 (1) |