| Name | Diplazium pycnocarpon (Sprengel) M. Broun |
| Authorship | (Sprengel) M. Broun |
| Rank | Species |
| Placed in | Diplazium Swartz |
| Citation | 1938 Index No. Amer. Ferns 60 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Diplazium pycnocarpon (Sprengel) M. Broun |
| Identification made in | [no date] (1), 2019 (1) |