Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Subkingdom Pteridobiotina Britton & A. Br. (1896)
     Superdivision Pteridophytanae Doweld (2001) [monotypic] see Superphylum Pteridophytanae Doweld (2001)
       Division Monilophyta Cantino & Donoghue
         Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
           Order Polypodiales Link (1833) - cathetogyrates
             Family Polypodiaceae J.Presl & C.Presl (1822) - polygrams
               23a Subfamily Loxogrammoideae H.Schneid. (2011)
               23b Subfamily Drynarioideae Crabbe, Jermy & Mickel (1975)
               23c Subfamily Platycerioideae B.K.Nayar (1970)
               23d Subfamily Microsoroideae B.K.Nayar (1970)
               23e Subfamily Polypodioideae Sweet (1826)