| Name | Gyrothyra underwoodiana M. Howe |
| Authorship | M. Howe |
| Rank | Species |
| Placed in | Gyrothyra |
| Citation | 1897 Bull. Torrey Bot. Club 24: 202 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Gyrothyra underwoodiana M. Howe |
| Identification made in | [no date] (16) |
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