NATURAL HISTOKY, TORONTO REGION 



29. Onoclea struthiopteris, Hoffm. (Ostrich 

 Fern). This is one of our best known ferns, grow- 

 ing mostly in moist, open situations. Under favour- 

 able conditions it reaches a height of four or five feet. 



OSMUNDACEAE. 



1. Osmunda regalis, L. (Royal Fern or Flower- 

 ing Fern). Common northward along the borders 

 of streams and ponds, also throughout Ontario locally. 



2. Osmunda claytoniana, L. (Interrupted Fern). 

 Near Toronto, in Ashbridge's " Wood," High Park, 

 and along the Humber River. Distributed through- 

 out Ontario. 



3. Osmunda cinnamomea, L. (Cinnamon Fern). 

 This species is often found in the same localities as 

 the preceding, but usually in more moist and shaded 

 localities. 



OPHIOOLOSSACEAE. 



1. Ophioglossum vulgatum, L. (Adder's-tongue). 

 Very rare near High Park, Toronto. Near Port 

 Sydney, Muskoka, Ont., it occurs in long grass in 

 damp ground, in shaded situation. 



2. Botrychium lunaria, Sw. (Moonwort). This 

 has been reported from Northern Ontario. 



3. Botrychium simplex, Hitchcock (Little Grape- 

 fern). Found in one locality in open woods near 

 High Park, Toronto. Also reported frequent on 

 upland pastures in Peel County (White). 



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