68 CRYPTOGRAMMA 



DENSE CLIFF BRAKE: 



Cryptogrdmma densa. 

 {Pellaea densa.) 



Fronds 4 to 8 inches high;, usually three times 

 pinnate, nearly every frond fertile. In the fertile 

 fronds the pinnules curve back over the sori and 

 have the appearance of narrow, half-open, sharp- 

 pointed pods, from a quarter to half an inch in 

 length; segments of the sterile fronds broader, 

 acute, and sharply toothed; stipes dark. 



Fruit dots and indusium marginal. 



Found on cliffs, growing in dense tufts, on Mt. 

 Albert in Quebec, in Grey County, Ontario, and in 

 the far west. 



