| Name | Portlandia pterosperma S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Portlandia P. Browne |
| GUID | urn:lsid:ipni.org:names:208522-2 |
| Citation | 1889 Proc. Amer. Acad. Arts 24: 53 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Portlandia pterosperma S. Watson |
| Identification made in | [no date] (2) |