Aspidiales Pic.Serm. nom. inval., nom. nud. Aspleniales Pic.Serm. ex Reveal legitimate Athyriales Schmakov legitimate Blechnales Pic.Serm. ex Reveal legitimate Davalliales Pic.Serm. nom. inval., nom. nud. Dennstaedtiales Doweld legitimate Dryopteridales Schmakov legitimate Lindsaeales Doweld ex A.R.Sm. nom. inval., nom. nud. Lonchitidales A.R.Sm. nom. inval., nom. nud. Negripteridales Doweld legitimate Parkeriales A.B.Frank legitimate Platyzomatales Doweld legitimate Pteridales Doweld legitimate Saccolomattales Doweld ex A.R.Sm. nom. inval., nom. nud. Thelypteridales Doweld legitimate