| Name | Pronephrium rhombeum (Christ) Holttum |
| Authorship | (Christ) Holttum |
| Rank | Species |
| Placed in | Pronephrium |
| Citation | 1972 Blumea 20: 120 |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Pronephrium rhombeum (Christ) Holttum |
| Identification made in | [no date] (12) |