NATURAL HISTORY, TORONTO REGION 



Toronto it appears to be quite rare. In southwestern 

 and eastern Ontario it is also fairly common. 



13. Asplenium filix-femina, Benin. (Lady Fern). 

 Very common and varied in form according to habi- 

 tat and locality. Occurs in moist woods. 



14. Camptosorus rhizophyllus, Link. (Walking 

 Fern). On moist moss-covered limestone rocks at 

 Niagara Glen. In similar habitat at Credit Forks 

 (White). Also from several other localities in On- 

 tario. 



15. Polystichum acrostichoides, Schott. (Christ- 

 mas Fern) . Common generally in rich rocky woods. 



16. Aspidium thelypteris, Sw. (Marsh Shield 

 Fern). Common everywhere from south to north 

 along the grassy borders of marshes. 



17. Aspidium noveboracense, Sw. (New York 

 Fern). Reported rare in low woods from Peel 

 County (White). Common northward. 



18. Aspidium marginale, Sw. (Evergreen Wood- 

 fern). One of the most common ferns, occurring in 

 open rocky woods. 



19. Aspidium goldianum, Hook. (Goldie's Fern). 

 Occurs in the Niagara peninsula, at Niagara Glenn 

 and in eastern Ontraio, in low rich woods in cal- 

 careous soil. 



20. Aspidium boottii, Tuckerm. (Boott's Shield* 

 fern). Several plants found at Madoc, Ont, at the 

 foot of a limestone cliff in shaded situation. Here 

 it occurred with Aspidium spinulosum intermedium 

 and Aspidium marginale. 



144 



