[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       "Moniliformopses" Kenrick & P.R.Crane (1997), nom. inval. - ferns see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval.
         Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
           Order Polypodiales Link (1833) - cathetogyrates
             Family Pteridaceae E.D.M.Kirchn. (1831) - pteroids
               Subfamily Adiantoideae Horvat (1927) see Subfamily Vittarioideae Link (1841)
                 Genus Monogramma Comm. ex Schkuhr (1808) see Genus Haplopteris C.Presl (1836), nom. cons.