Thelypteris kunthii is accepted species in  the family Aspleniaceae   
Genus Thelypteris 
This species is found in Alabama, Arkansas, Bahamas, Belize, Bermuda, Cayman Is., Colombia, Costa Rica, Cuba, Dominican Republic, El Salvador, Florida, Galápagos, Georgia, Guatemala, Haiti, Honduras, Jamaica, Leeward Is., Louisiana, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Mississippi, Nicaragua, North Carolina, Puerto Rico, South Carolina, Texas, Turks-Caicos Is., Venezuela, Windward Is..