| Campyloneurum repens (Aubl.) C. Presl, 1836 |
| Campyloneurum serpentinum (Christ) Ching, 1940 |
| Campyloneurum tenuipes Maxon, 1909 |
| Campyloneurum xalapense Fée, 1852 |
| Ceradenia L.E. Bishop, 1988 |
| Ceradenia (Ceradenia) L.E. Bishop, 1988 |
| Ceradenia (Ceradenia) jungermannioides (Klotzsch) L.E. Bishop, 1988 |
| Ceradenia (Ceradenia) oidiophora (Mickel & Beitel) A.R. Sm., 1995 |
| Ceradenia (Ceradenia) pruinosa (Maxon) L.E. Bishop, 1988 |
| Ceradenia (Filicipecten) L.E. Bishop, 1988 |
| Ceradenia (Filicipecten) margaritata (A.R. Sm.) L.E. Bishop, 1988 |
| Ceradenia sacksii Sundue, 2017 |
| Chrysopteris Link, 1841 |
| Chrysopteris dulcis (Poir.) Fée, 1852 |
| Cochlidium Kaulf., 1820 |
| Cochlidium linearifolium (Desv.) Maxon ex C. Chr., 1929 |
| Cochlidium rostratum (Hook.) Maxon ex C. Chr., 1929 |
| Cochlidium serrulatum (Sw.) L.E. Bishop, 1978 |
| Craspedaria Link, 1841 |
| Ctenopteris Blume ex Kunze, 1846 |