330 
THE FERN WORLD 
INDEX TO PLATE 11. 
Fig. i. Prickly-toothed Buckler Fern 
I 
[I.aslrea spinulosa\ 
2. Mountain Buckler Fern 
[Lastrea Montana] 
^3. Marsh Buckler Fern 
\_Lastrea thelypteris] 
