| Name | Ophioglossum costatum R. Brown |
| Authorship | R. Brown |
| Rank | Species |
| Placed in | Ophioglossum Linnaeus |
| Citation | 1810 Prodr. Fl. Nov. Holland. 163 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ophioglossum costatum R. Brown |
| Identification made in | [no date] (3) |
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