| Name | Diplazium longifolium T. Moore |
| Authorship | T. Moore |
| Rank | Species |
| Placed in | Diplazium Swartz |
| Citation | 1859 Index Fil. (T. Moore) 6: 141, 332 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Diplazium longifolium T. Moore |
| Identification made in | [no date] (1) |