| Name | Brachythecium polyoicum (Thériot) McFarland |
| Authorship | (Thériot) McFarland |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Brachythecium |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Brachythecium polyoicum (Thériot) McFarland |
| Identification made in | [no date] (3), 1987 (1), 1992 (1) |