| Name | Hypnum minutissimum Sullivant & Lesquereux |
| Authorship | Sullivant & Lesquereux |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Hypnum Hedwig |
| Citation | 1856 Manual [A. Gray] Second Edition 678 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hypnum minutissimum Sullivant & Lesquereux |
| Identification made in | [no date] (1), 2017 (1) |