| Name | Isopterygium elegans (Bridel) Lindberg |
| Authorship | (Bridel) Lindberg |
| Rank | Species |
| Placed in | Isopterygium |
| Citation | 1874 Not. Sallsk. Fauna Fl. Fenn. Forh. 13: 416 |
| Holdings | 74 Specimens held in the Harvard University Herbaria identified as Isopterygium elegans (Bridel) Lindberg |
| Identification made in | [no date] (73), 1949 (1) |