400 THE CANADIAN NATURALIST. [Oct. 



SCOLOPENDRIUM 



officinarum {HoiuioC s-tongue) . 



On limestone rocks at Owen Sound, C.W., 1857, Rer. 

 Prof. Hincks University College Toronto. Since 

 found in several adjacent localities. 



Asplenium (The Spleenworts.) 



Trichomanes [Common Spleen-wort). 



On cliffs and rocky banks, general from Quebec west- 

 wards, but not common. 



yiride [Green Spleenwort). 



In the fissures of moist rocks. General from near Quebec- 

 eastwards. (Newfoundland, New Brunswick, and 

 eastern Lower Canada to the Rocky Mountains, and 

 northward to Greenland.) This fern — the j2. viride 

 of Hudson and all modern botanists, — is common in 

 the Highlands of Scotland, and other alpine localities 

 in Europe. It is not in Gray's Manual. 



ebeneura (Screw-fern). 



Rocky open woods. General (apparently only) in Canada, 

 West ; rather rare. To be sought for in the Eastern 

 Townships, as it occurs in Vermont and Maine. 



angustifolium [Narrow-leaved Spleenwort). 



In rich woods ; general from Montreal westwards, but 

 rather rare. 



thelypteroides {Silvery Spleenwort). 



In moist rich woods. A variable fern ; general from 

 Quebec westwards, and sometimes common. 



Filix-foemina {Lady-fern). 



In moist woods. A very variable fern ; generally distri- 

 buted, and very common. 

 DlCKSONIA 



punctilobula ( Gossamer-fern) . 



In moist woods ; general from near Montreal westwards, 

 and in some localities common. 

 Woodsia* (The Hair Ferns). 



Ilvensis [Downy Woodsia). 



On rocks; general; a variable, and often common fern. 

 Very luxuriant near the river Saguenay, with fronds 

 sometimes over a foot long. 



* After a somewhat imperfect examination of numerous specimens of 

 our Canadian plants belonging to this genus — imperfect chiefly owing 

 to the limited range of fern literature available in Montreal — I would 

 temporarily re-arrange the species as follows : 



