| Name | Pseudocalymma macrocarpum (Donnell Smith) Sandwith |
| Authorship | (Donnell Smith) Sandwith |
| Rank | Species |
| Placed in | Pseudocalymma |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pseudocalymma macrocarpum (Donnell Smith) Sandwith |
| Identification made in | 1939 (1) |