| Name | Pseudocalymma alliaceum (Lamarck) Sandwith |
| Authorship | (Lamarck) Sandwith |
| Rank | Species |
| Placed in | Pseudocalymma |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Pseudocalymma alliaceum (Lamarck) Sandwith |
| Identification made in | 1972 (3) |