262 GEOLOGICAL SDRVET OF CANADA. 



towards the east, N. W. Ter. (.7. M. Macoun.) Eocks along the Arctic 

 coast from Mackenzie Eiver to Baffin Bay. (Hooker.) Stony places in the 

 Eocky Mountains, but rare, to the sources of the Columbia Biver, B.C. 

 (^Druminond). thence to the Grand Rapids of the Columbia. {Douglas.) 

 Kicking Horse Pass. Eocky Mountains, Selkirk Mountains, common in 

 the Cascade and Gold ranges, along the Frasei' River at Agassiz, and 

 common on Vancouver Island, B.C. (Macoun.) Wigwam River, Koo- 

 tanie Valle}-, Rocky Mountains. (Dawson.) Yale, B.C. (Fletcher.) 

 Common at Victoria, B.C., among rocks on bare hills. (Anderson.) 



745. PTERIS, Linn., Cen. PI., No. 1174., 



(BRAKE OR BRACKEN.) 



(2986.) P. aquilina, Linn., Sp. PI., 1533. Michx., Fl. Bor.-Am., ii., 

 262. Hook., Fl. Boi-.-Am., ii., 263. Provancher, Fl. Can., 715. 

 Lawson, Can. Nat., i., 270. Watt, Can. Nat., iv., 363. ^Macoun 

 & Burgess, Trans. Roj-. Soc. Can., ii., sect^ iv., 186. 



Alloforus aquUimm, Preal, Tent Pterid., 153. 



Is common, growing usually on sand or sandy loam, from the At- 

 lantic to the Pacific. Very common in Xova Scotia. (McKay.) 

 Growing everywhere in New Brunswick. (Fowler.) Prince Edward 

 Island. (Bain.) Jupiter River, Anticosti, Que. (Macoun.) Common 

 everywhere in Quebec. (McCord, St. Cyr.) Common at Lake Mis- 

 tassini, and down the Rupert River to James Bay, N. E. Ter. (J. M. 

 Macoun.) Common in Ontario and in parts of Manitoba. (Macoun, 

 Burgess, &c.) Saskatchewan plains, N. W. Ter., and Rocky Mountains. 

 (Macoun.) 



Var. lanuginosa, Bong. ; Hook., Fl. Bor.-Am., ii., 263. Macoun & 

 Burgess, Trans. Eoy. Soc. Can., ii., sect, iv., 187. 



P. lanuginosa, Bory, in Willd., Sp. PI., v., i03. 



The common form on Vancouver Island and the mainland of British 

 Columbia, where it is known to extend eastward at least as far as the 

 Columbia Eiver at Donald. (Fletcher, Macoun.) It is charactei-ized 

 by the silky-pubescent under surface of the fronds. 



