Polypodiaceae 3 



above the leaf 2-3 pinnate, cinnamon brown, 

 when ripe. 



In rich moist woods, sparingly throughout 

 the region during the summer. 



POLYPODIACE.E 

 Fern Family 



Ferns of various habits, the rootstocks 

 horizontal, often elongated or short and erect ; 

 the leaves simple, pinnate, pinnatifid or 

 decompound, coiled at the ends when young. 

 Sporanges borne in clusters (sort) on the 

 lower side or margins of the leaves or their 

 segments, with or without a membranous 

 covering (mdusium). 



Represented in the region by the following 10 genera. 

 Sori without indusia, leaves 2-3 pinnate or ternate. 



Phegopteris. 



Sori with marginal indusia formed by the more or 



less altered edge of the leaf. 



Sporanges at the ends of the veins, borne on a re- 

 flexed portion of the leaf. Adiantum. 

 Sporanges on a continuous vein-like receptacle 

 which connects the apices of the veins. 



Pteridium. 



