| Name | Nautilocalyx forgetii (Sprague) Sprague |
| Authorship | (Sprague) Sprague |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Nautilocalyx Linden ex Hanstein |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Nautilocalyx forgetii (Sprague) Sprague |
| Identification made in | 1980 (1), 2006 (1) |