| Name | Hypnum hamulosum Froelich |
| Authorship | Froelich |
| Rank | Species |
| Placed in | Hypnum Hedwig |
| Citation | 1827 Bryol. Univ. 2: 610 |
| Holdings | 14 Specimens held in the Harvard University Herbaria identified as Hypnum hamulosum Froelich |
| Identification made in | [no date] (14) |
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