Thelypteris tetragona (Sw.) Small [ Polypodium tetragonum Sw.]
      
no HD illustration available (m3)
6 1011455 Thelypteris tetragona (Sw.) Small [125 826879 Polypodium tetragonum Sw.] Polypodiaceae
E.J. Lowe, Ferns, vol. 1 : p. 135, t. 46 (1839)