| Name | Rhizomnium magnifolium (Horikawa) T. J. Koponen |
| Authorship | (Horikawa) T. J. Koponen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Rhizomnium |
| Citation | 1973 Ann. Bot. Fenn. 10(1): 14 |
| Holdings | 84 Specimens held in the Harvard University Herbaria identified as Rhizomnium magnifolium (Horikawa) T. J. Koponen |
| Identification made in | [no date] (83), 2017 (1) |