| 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) | 
