■VVOODSIA. 439 



GENUS xiy. 



WOODSIA. R. Bkowx. 



A SMALL genus containing, according to the late Sir W. J. 

 Hooker, in his valuable and conq^rehensive "Species Filicum," 

 the following: — 



Mollis, a native of Mexico. 



Guatemalensis, of Guatemala. 



Peruviana, of Peru. 



Cumingiana, of Chili. 



Caucasica, from the Caucasus. 



Elongata, of Northern India. 



Ohtusa, of North America. 



Incisa, from the Argentine Republic. 



Ilvensis, British. 



Hijperhorea, British. 



Glabella, from the Great Bear Lake. 



A twelfth species has more recently been discovered in 

 Japan, and has received the name of Polijstichoides. 



Fronds membranaceous, diminutive, pinnato-pinnatifid or 

 bipinnate. Caudex tufted, erect, or decumbent. Sori indusiate. 

 Indusium calyciform. 



There are two British species, growing in mountainous 

 districts, and l)oth very rare. 



