474 GEOLOGICAL SURVEY OF CANADA. 



Lake, and reaches the neighborhood of the junction of the Shammat- 

 tawa and Steel Rivers, which form the Hayes River. From this point 

 it turns south-west and crosses the Nelson River at the outlet of Sipi- 

 wesk Lake. (_R. Bell.} Both Dr. Bell and Professor Sargent give the 

 range of this tree to Lat. 65, which is evidently a mistake, as Sir John 

 Richardson states its limit to be in Lat. 62. Sh* William Hooker, in 

 his Flora places the limit on the Saskatchewan, while we have found 

 it on the Athabasca River in Lat. 58. (Macoun.~) 



(2091.) A. subalpina, Engelm. Mountain Balsam. 



Pinus lasiocarpa, Hook. Fl. II., 163. 



Picea amabttis, Gordon, Pinetum, 154, in part 



A. Ufolia, Murray, In Proc. Hort. Soc., London, III., 320. 



A. grandis, Engelm. in Am. Jour. Sci., 2nd ser., XXXIV., 310. 



Pinus amaMlis, Parlatore in De Candolle Prod. XVI., 426, in part. 



Picea bifolia, Murray in London Gard, Chronicle, 1875, 105. 



Interior of north-west America, last journey. (Douglas.) On 

 the summit of the House Mountain, south of Lesser Slave Lake; 

 abundant in the Bow River Pass on mountain slopes from 5,000 to 

 7,000 feet altitude, extending on the line of the Canadian Pacific 

 railway from Castle Mountain to the Selkirk summit. (Macoun.) 

 Appears to take the place of A. grandis in the region east of the 

 Coast ranges in British Columbia. It is not found in the southern dry 

 portion of the interior plateau, but grows abundantly in the Gold and 

 Selkirk ranges, and in the Rocky Mountain region east of McLeod's 

 Lake. Elsewhere in the northern portion of the interior plateau it 

 occurs in scattered groves, generally in localities nearly reaching or 

 surpassing 4,000 feet, but even in low valleys in the eastern portion of 

 the Coast ranges. It crosses the Rocky Mountains in the Peace River 

 district, and occurs in cold damp situations in the country between 

 Lesser Slave Lake and the Athabasca River. In high and cool valleys 

 in the Rocky Mountains, southward to the 49th parallel, reaching 

 upward to the timber-line. (Dawson.} 



(2092.) A. grandis, Lindley. Western White Fir. 

 Pinus grandis, Dougl. Hook. Fl. II., 163. 

 Picea grandis, Loudon. Gordon, Pinetum, 155. 

 A. Gordoniana, Carr., Trait. Conif., 2nd ed., 298. 

 A. amabilis, Murray, in Proc. Hort. Soc., London, III., 310. 



In British Columbia, confined to the vicinity of the coast, where its 

 range appears to be even more strictly limited than that of the cedar 

 or hemlock. (JDawson.} 



