| Name | Hypnum dimorphum Bridel |
| Authorship | Bridel |
| Rank | Species |
| Placed in | Hypnum Hedwig |
| Citation | 1812 Muscol. Recent. Suppl. 2: 149–150 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hypnum dimorphum Bridel |
| Identification made in | [no date] (1) |