| Name | Mnium marginatum var. riparium (Mitten) Husnot |
| Authorship | (Mitten) Husnot |
| Rank | Variety |
| Placed in | Mnium marginatum (Dickson) P. Beauvois |
| Citation | 1889 Muscol. Gall. 256 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Mnium marginatum var. riparium (Mitten) Husnot |
| Identification made in | [no date] (4) |