| Hypnum lacunosum (Brid.) Hoffm. ex Brid., 1819 |
| Hypnum lejolisii Besch., 1872 |
| Hypnum leptochaeton Schwägr., 1816 |
| Hypnum leucotrichum Taylor, 1848 |
| Hypnum liliputianum Mont., 1842 |
| Hypnum longirostratum Müll. Hal., 1851 |
| Hypnum macrogynum Besch., 1892 |
| Hypnum mascarenicum Müll. Hal., 1851 |
| Hypnum microphyllum Sw. ex Hedw., 1801 |
| Hypnum microtheca Müll. Hal., 1848 |
| Hypnum minutulum Hedw., 1801 |
| Hypnum mirabile E.B. Bartram, 1947 |
| Hypnum nemorosum W.D.J. Koch ex Brid., 1827 |
| Hypnum nigrescens Sw. ex Hedw., 1801 |
| Hypnum nigricans Hook., 1822 |
| Hypnum novogranatense Hampe, 1862 |
| Hypnum occidentale Hampe, 1866 |
| Hypnum oreganum Sull., 1849 |
| Hypnum patrisiae Brid., 1827 |
| Hypnum patulum Hedw., 1801 |