| Name | Pronephrium firmulum (Baker) Holttum |
| Authorship | (Baker) Holttum |
| Rank | Species |
| Placed in | Pronephrium |
| Citation | 1972 Blumea 20: 116 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pronephrium firmulum (Baker) Holttum |
| Identification made in | [no date] (1) |