| Name | Nardia tetragona f. brevoir Schiffner |
| Authorship | Schiffner |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Nardia tetragona (Lindenberg) Schiffner |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Nardia tetragona f. brevoir Schiffner |
| Identification made in | [no date] (1) |