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See list of 2 genera in this family
  • 1a. Sterile leaves deeply lobed, divided only in the basal portion if at all; blade deltate, widest at the base; venation reticulate; sori enclosed in spherical leafules
  • 1b. Sterile leaves once-divided; blade elliptic to narrowly oblanceolate, widest above the middle; venation free (i.e., the veins forking and not rejoining); sori enclosed in linear leaflets

 Show photos of:   Each photo represents one genus in this family.