Phylum [Tracheophyta] Sinnott ex Caval.-Sm. (1998) - vascular plants
   Subphylum Polypodiophytina Reveal (1996) [monotypic]
     Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
       Subclass Polypodiidae Cronquist, Takht. & Zimmerm. (1966)
         Order Polypodiales Link (1833) - cathetogyrates
           (eupolypods)
             Suborder Polypodiineae Dumort. (1829)
               Family Polypodiaceae J.Presl & C.Presl (1822) - polygrams
                 Subfamily Drynarioideae Crabbe, Jermy & Mickel (1975)
                   1 Genus Aglaomorpha Schott (1836)
                   2 Genus Arthromeris (T.Moore) J.Sm. (1875)
                   3 Genus Gymnogrammitis Griffith (1849)
                   4 Genus Paraselliguea Hovenkamp
                   5 Genus Polypodiopteris C.F.Reed (1948)
                   6 Genus Selliguea Bory (1824)