THE HOCK BRAKES. 



THE MOUNTAIN PAESLEY TEEN. 



Allosorus crispus. BEBNHARDI. 

 Osmunda, or Pteris crispa. 



Of the Eock Brakes there is but one British species 

 the Mountain Parsley Fern, known at once by its like- 

 ness to tufts of parsley, and distinctly differing from 

 other of our native ferns in the marked division of its 

 sterile and fertile fronds, the first of which have these 

 segments broad, flat, and leaf-like, while the second 

 have them involute, or rolled in at the margin, cover- 

 ing the sori instead of an indusium. The fronds of the 

 Mountain Parsley Fern are annual, coming up in May 

 or June, and dying down in the autumn, from four to 

 twelve inches high (including the stipes), of a lively 



