86 POLYSTICHUM 



BRAUN'S HOLLY FERN: 



Polysticlium Braunii. 

 (^Aspidium aculeatum, var. Braunii.) 



Fronds 1 to 3 feet long, tapering toward the 

 base, evergreen, short-stalked, twice pinnate; 

 pinnae broadest at the base, acute; pinnules in- 

 clined to be eared, sharply toothed; both stipe and 

 rachis covered with chafFy hairs and brown scales. 



Fruit dots not very conspicuous, borne on the 

 backs of the ordinary fronds. 



Found in rich upland woods from Newfoundland 

 to Lake Superior, and in the mountains of Penn- 

 sylvania. 



