#family_Pteridaceae__Pteridaceae  one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems; Pteridaceae is itself in turn sometimes further subdivided
  supertype:  #fern_family  families of ferns and fern allies
  member of:  #order_Filicales
  member:  #genus_Acrostichum__Acrostichum  in some classification systems placed in family Polypodiaceae
     member:  #leather_fern__leatherfern__goldenfern__Acrostichum_aureum  stout tropical swamp fern (especially tropical America) having large fronds with golden yellow sporangia covering the undersides
  member:  #genus_Actiniopteris__Actiniopteris  terrestrial ferns of tropical Asia and Africa
  member:  #genus_Adiantum__Adiantum  cosmopolitan genus of ferns: maidenhair ferns; in some classification systems placed in family Polypodiaceae or Adiantaceae
     member:  #maidenhair_fern__maidenhair  any of various small to large terrestrial ferns of the genus Adiantum having delicate palmately branched fronds
  member:  #genus_Anogramma__Anogramma  a genus of ferns belonging to the family Pteridaceae
     member:  #annual_fern__Jersey_fern__Anogramma_leptophylla  small short-lived fern of Central and South America
  member:  #genus_Cheilanthes__Cheilanthes  small evergreen ferns: lipferns; in some classifications placed in family Polypodiaceae or Adiantaceae
     member:  #lip_fern__lipfern  any of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semi-arid temperate or tropical regions
     member:  #lace_fern__Cheilanthes_gracillima  small tufted fern of northwestern America
  member:  #genus_Coniogramme__Coniogramme  terrestrial ferns of Pacific islands and Asia
     member:  #bamboo_fern__Coniogramme_japonica  fast-growing sturdy Japanese fern; cultivated for their attractive broad dark-green pinnate fronds
  member:  #genus_Cryptogramma__Cryptogramma  sometimes placed in family Polypodiaceae or Cryptogrammataceae
     member:  #rock_brake  dwarf deciduous lithophytic ferns
     member:  #American_rock_brake__American_parsley_fern__Cryptogramma_acrostichoides  rock-inhabiting fern of northern North America growing in massive tufts and having fronds resembling parsley
  member:  #genus_Doryopteris__Doryopteris  small to medium tropical tufted ferns; sometimes placed in family Adiantaceae
     member:  #hand_fern__Doryopteris_pedata  tropical American fern with coarsely lobed to palmatifid fronds
  member:  #genus_Jamesonia__Jamesonia  xerophytic ferns of South America
  member:  #genus_Onychium__Onychium  small terrestrial ferns of Old World tropics and subtropics: claw ferns; sometimes placed in family Cryptogrammataceae
  member:  #genus_Pellaea__Pellaea  genus of chiefly small rock-loving ferns; in some classification systems it is placed in the family Polypodiaceae or Adiantaceae
     member:  #cliff_brake__cliffbrake__rock_brake  any of several small lithophytic ferns of tropical and warm temperate regions
     member:  #coffee_fern__Pellaea_andromedifolia  evergreen fern of California and Baja California
     member:  #button_fern__Pellaea_rotundifolia  fern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets
  member:  #genus_Pityrogramma__Pityrogramma  terrestrial tropical ferns having fronds with powdery yellowish or white undersides; sometimes placed in family Polypodiaceae or Adiantaceae
     member:  #Pityrogramma_argentea__silver_fern  fern of southern tropical Africa having fronds with white undersides
     member:  #silver_fern__Pityrogramma_calomelanos  tropical American fern having fronds with white undersides
     member:  #golden_fern__Pityrogramma_calomelanos_aureoflava  tropical American fern having fronds with light golden undersides
     member:  #gold_fern__Pityrogramma_chrysophylla  fern of West Indies and South America having fronds with bright golden-yellow undersides
  member:  #genus_Pteris__Pteris  large genus of terrestrial ferns of tropics and subtropics; sometimes placed in family Polypodiaceae
     member:  #brake.fern  any of various ferns of the genus Pteris having pinnately compound leaves and including several popular houseplants
     member:  #Pteris_cretica  cultivated in many varieties as houseplants
     member:  #spider_brake__spider_fern__Pteris_multifida  Asiatic fern introduced in America
     member:  #ribbon_fern__spider_fern__Pteris_serrulata  fern of North Africa and Azores and Canary Islands

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