| Name | Peperomia crassiuscula Millspaugh |
| Authorship | Millspaugh |
| Rank | Species |
| Placed in | Peperomia Ruiz & Pavon |
| Citation | 1900 Publ. Field Columb. Mus., Bot. Ser. 2(1): 33 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Peperomia crassiuscula Millspaugh |
| Identification made in | [no date] (5) |