| 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) | 
