The Pteridopsida is a class of plants in the Division Pteridophyta that includes the "modern" ferns. The Pteridopsida is sub-divided into four subclasses to reflect likely clades. These subclasses (and their included orders) are:

• Subclass Cyatheatae
  • Order Cyatheales (the tree ferns)
  • Order Plagiogyriales
  • Order Loxomales
• Subclass Schizaeatae
  • Order Schizeales (including the climbing ferns)
  • Order Marsileales (the water-clovers, mosquito fern, water-spangle)
• Subclass Pteriditae
  • Order Lindseales
  • Order Pteridales (including the brakes and maidenhair ferns)
  • Order Dennstaedtiales (the cup ferns)
  • Order Hypolepidales (including bracken)
• Subclass Polypoditae
  • Order Aspleniales (the spleenworts)
  • Order Athyriales (including the lady ferns, ostrich fern, maiden ferns, etc.)
  • Order Dryopteridales (the wood ferns and sword ferns)
  • Order Davalliales (including the rabbits-foot ferns and Boston ferns)
  • Order Polypodiales (including the rock-cap ferns or Polypodies)

Pteridophyta

Paprocie