Pteridophytes

   Division – Lycopodiophyta 
      Order – Lycopodiales 
         Family – Lycopodiaceae (Clubmosses)
      Order – Selaginellales 
         Family – Selaginellales (Spikemosses)
      Order – Isoetales
         Family – Isoetaceae (Quillworts)

   Division – Polypodiophyta   
      Order – Equisetales
         Family – Equisetaceae (Horsetails)
      Order – Ophioglossales
         Family – Ophioglossaceae (Adder’s Tongue)
      Order – Filicales (Ferns)
         Family – Osmundaceae (Royal Ferns)
         Family – Hymenophyllaceae (Filmy-ferns)
         Family – Polypodiaceae (Polypodies)
         Family – Dennstaedtiaceae (Bracken)
         Family – Cystopteridaceae (Oak & Bladder-ferns)
         Family – Aspleniaceae (Spleenworts & Allies)
         Family – Woodsiaceae (Woodsias)
         Family – Athyriaceae (Lady-ferns)
         Family –  Thelypteridaceae (Marsh & Beech Ferns)
         Family – Blechnaceae (Hard-fern)
         Family – Dryopteridaceae (Shield, Male, & Buckler-ferns)