| Name | Didymodon nicholsonii Culmann |
| Authorship | Culmann |
| Rank | Species |
| Placed in | Didymodon |
| Citation | 1907 Rev. Bryol. 34: 100 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Didymodon nicholsonii Culmann |
| Identification made in | [no date] (3) |