| Name | Hylocomium squarrosum (Hedwig) Schimper |
| Authorship | (Hedwig) Schimper |
| Rank | Species |
| Placed in | Hylocomium |
| Citation | 1852 Bryol. Eur. 5: 177. 492 (fasc. 49–51 Mon. 9. 6). |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hylocomium squarrosum (Hedwig) Schimper |
| Identification made in | [no date] (2) |