| Forsstroemia Lindb., 1863 |
| Forsstroemia mexicana Cardot, 1910 |
| Forsstroemia ohioensis (Sull.) Lindb., 1870 |
| Forsstroemia producta (Hornsch.) Paris, 1895 |
| Forsstroemia trichomitria (Hedw.) Lindb., 1863 |
| Lasia P. Beauv., 1804 |
| Lasia orthotrichoides Raddi, 1822 |
| Leptodon Mohr, 1803 |
| Leptodon beccarii Müll. Hal., 1872 |
| Leptodon immersus Sull. & Lesq., 1856 |
| Leptodon smithii (Hedw.) F. Weber & Mohr, 1803 |
| Leptodon smithii var. beccarii (Müll. Hal.) Tongiorgi, 1939 |
| Leptodontaceae Schimp., 1856 |
| Leucodontopsis Renauld & Cardot, 1893 |
| Leucodontopsis geniculata (Mitt.) H.A. Crum & Steere, 1957 |
| Leucodontopsis horeauana Renauld & Cardot, 1896 |