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Eukaryota
  Plantae
    Embryophyta
      Polypodiophyta
            Polypodiopsida
                    Polypodiales
                            Dennstaedtiaceae
                                     Blotiella
                                             Blotiella glabra
                                                   [Lonchitis glabra]
                                                   [Lonchitis gracilis]
                                                   [Lonchitis pubescens var. glabra]
                                                   [Lonchitis stenochlamys]
                                                   [Pteris glabra]
                                             Blotiella natalensis
                                                   [Lonchitis natalensis]
                                                   [Lonchitis pubescens var. nudiuscula]
                                                   [Pteris natalensis]
                                     Cincinalis
                                     Histiopteris
                                             Histiopteris incisa
                                                   [Histiopteris incisa var. carmichaeliana]
                                                   [Litobrochia incisa]
                                                   [Phegopteris incisa]
                                                   [Pteris incisa]
                                                   [Pteris lessonii]
                                                   [Pteris vespertilionis var. carmichaeliana]
                                                   [Pteris vespertilionis]
                                     Hypolepis
                                             Hypolepis sparsisora
                                                   [Adiantum altissimum]
                                                   [Cheilanthes aspera]
                                                   [Cheilanthes commutata]
                                                   [Cheilanthes sparsisora]
                                                   [Hypolepis anthriscifolia]
                                                   [Hypolepis aspera]
                                                   [Phegopteris sparsisora]
                                             Hypolepis villosa-viscida
                                                   [Cheilanthes viscosa]
                                                   [Hypolepis helenensis]
                                                   [Hypolepis punctata]
                                                   [Hypolepis rugosula]
                                                   [Phegopteris helenensis]
                                                   [Polypodium punctatum var. rugulosum]
                                                   [Polypodium villoso-viscidum]
                                                   [Polypodium viscidum]
                                     Microlepia
                                             Microlepia speluncae
                                                   [Aspidium speluncae]
                                                   [Davallia polypodioides var. pubescens]
                                                   [Davallia polypodioides]
                                                   [Davallia speluncae]
                                                   [Polypodium speluncae]
                                                   [Scyphofilix speluncae]
                                     Pteridium
                                             Pteridium aquilinum
                                                   [Pteris aquilina]
                                               Pteridium aquilinum subsp. aquilinum
                                               Pteridium aquilinum subsp. capense
                                                     [Allosorus capensis]
                                                     [Allosorus coriifolius]
                                                     [Pteridium aquilinum var. lanuginosum]
                                                     [Pteridium capense]
                                                     [Pteris aquilina var. lanuginosa]
                                                     [Pteris capensis]
                                                     [Pteris coriifolia]
                                                     [Pteris lanuginosa]
                                     Scyphofilix