| Hypnum tomentosum Hedw., 1801 |
| Hypnum toxarion Schwägr., 1816 |
| Hypnum trichopodium Schultz, 1806 |
| Hypnum trifarium F. Weber & D. Mohr, 1804 |
| Hypnum trinitense Müll. Hal., 1851 |
| Hypnum triste (Ces.) Müll. Hal., 1851 |
| Hypnum uncinatum Hedw., 1903 |
| Hypnum vaucheri Lesq., 1846 |
| Hypnum vaucheri var. coelophyllum (Molendo) Pfeff., 1869 |
| Hypnum vesiculare Schwägr., 1827 |
| Hypnum wahlenbergii F. Weber & D. Mohr., 1807 |
| Hypnum watsonii Lesq. & James, 1879 |
| Hypnum zickendrathii Renauld & Cardot, 1905 |
| Karstia B.H. Allen, 2018 |
| Karstia raspacula B.H. Allen, 2018 |
| Microthamnium Mitt., 1869 |
| Microthamnium elegantulum (Hook.) Mitt., 1869 |
| Microthamnium minusculifolium Müll. Hal.,1897 |
| Microthamnium rostratulum Renauld & Cardot, 1905 |
| Microthamnium salleanum (Besch.) Besch. ex Paris, 1896 |