| Botryogramme Fée, 1852 |
| Botryogramme karwinskii (Kunze) Fée, 1852 |
| Cassebeera Kaulf., 1824 |
| Cassebeera cuneata (Link) J. Sm., 1841 |
| Ceratodactylis J. Sm., 1839 |
| Ceratodactylis osmundoides J. Sm., 1839 |
| Ceratopteris Brongn., 1822 |
| Ceratopteris pteridoides (Hook.) Hieron., 1905 |
| Ceratopteris thalictroides (L.) Brongn., 1821 |
| Ceropteris Link, 1841 |
| Ceropteris calomelanos (L.) Underw., 1902 |
| Ceropteris schaffneri Fée, 1857 |
| Ceropteris serrata Fée, 1857 |
| Cheilanthes Sw., 1806 |
| Cheilanthes aemula Maxon, 1908 |
| Cheilanthes affinis Mett., 1859 |
| Cheilanthes alabamensis (Buckley) Kuntze, 1847 |
| Cheilanthes albida Baker, 1891 |
| Cheilanthes allosuroides Mett., 1859 |
| Cheilanthes angustifolia Kunth, 1815 |