262 GEOLOGICAL SURVEY OF CANADA. 



towards the east, N. W. Ter. (J. 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. 

 {Brummond') , thence to the Grand Eapids of the Columbia. (^Douglas.) 

 Kicking Horse Pass, Eocliy Mountains, Selkirk Mountains, common in 

 the Cascade and Gold ranges, along the Eraser Eiver at Agassiz, and 

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

 tanie Valley, Eocky Mountains. (Dawson.) Yale, B.C. (Fletcher.) 

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



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



(BRAKE OR BRACKEN.) 



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

 262. Hook., PI. Bor.-Am., ii., 263. Provancher, Fl. Can., 115. 

 Lawson, Can. Nat, i., 2*70. Watt, Can. Nat., iv., 363. Macoun 

 & Burgess, Trans. Eoy. Soc. Can,, ii., sect, iv., 186. 



Allosorus aquilinus, Presl, Tent Pterid., 153. 



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

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

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

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

 everywhere in Quebec. (McOord, St. Gyr.) Common at Lake Mie- 

 tassini, and down the Eupert Eiver to James Bay, N. B. Ter. (J. M. 

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

 Burgess, &c.) Saskatchewan plains, N. W. Ter., and Eocky 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., 403. 



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 characteiized 

 by the silky-pubescent under surface of the fronds. 



