• Acropteris Geyer in Hübner, 1832 [Family: Uraniidae]
• Acropteris Link, 1833 accepted as Asplenium Linnaeus, 1753 [Family: Aspleniaceae]
• Afropteris Alston, 1956 accepted as Pteris Linnaeus, 1753
• Agasopteris Zalessky, 1937 † (uncertain)
• Aipteris Zalessky, 1939 † (uncertain)
• Angiopteris Adanson, 1763 accepted as Onoclea Linnaeus, 1753 [Family: Onocleaceae]
• Angiopteris G.F. Hoffmann, 1796 [Family: Marattiaceae]
• Aninopteris R. Givulescu & M. Popa, 1998 †
• Anisopteris (K. Oberste-Brink) M. Hirmer, 1940 † (uncertain)
• Anopteris Prantl ex Diels in Engler & Prantl, 1899 accepted as Pteris Linnaeus, 1753
• Aropteris Alston, 1956 accepted as Afropteris Alston, 1956 accepted as Pteris Linnaeus, 1753
• Ragiopteris K.B. Presl, 1836 accepted as Onoclea Linnaeus, 1753