| Adiantum raddianum C. Presl, 1836 |
| Adiantum radiatum L., 1753 |
| Adiantum schaffneri E. Fourn., 1880 |
| Adiantum seemannii Hook., 1851 |
| Adiantum shepherdii Hook., 1851 |
| Adiantum strictum Sw., 1788 |
| Adiantum tenerum Sw., 1788 |
| Adiantum tenerum var. dissectum M. Martens & Galeotti, 1842 |
| Adiantum terminatum Kunze ex Miq., 1843 |
| Adiantum tetraphyllum Humb. & Bonpl. ex Willd., 1810 |
| Adiantum thalictroides Willd. ex Schltdl., 1832 |
| Adiantum trapeziforme L., 1753 |
| Adiantum trapeziforme var. oblongatum T. Moore, 1857 |
| Adiantum trapeziforme var. plumieri T. Moore, 1857 |
| Adiantum trapezoides Fée, 1852 |
| Adiantum trichochlaenum Mickel & Beitel, 1988 |
| Adiantum tricholepis Fée, 1857 |
| Adiantum villosum L., 1759 |
| Adiantum wilesianum Hook., 1851 |
| Adiantum wilsonii Hook., 1851 |