476 GEOLOGICAL SUBVEY OF CANADA. 



ling eastward. Not found on the coast. One or two very small speci- 

 mens observed north of Is-cul-taesli Eiver, tributary of the Blackwater, 

 Long. 124, B.C., June 4th, 1876. This is the only point at which this 

 tree has been found west of the localities last mentioned, and its occur- 

 rence here must be regarded as quite exceptional. (JDawsm.} 



(2096.) L. Lyallii, Parlatore. Mountain Larch. 

 Pinus pendula, Hook. FL II., 164., in part 



North-west America, gathered in Douglas' last journey. (Hooker.') 

 Forming the last belt of timber on all peaks of the Rocky Mountains 

 above 7,000 feet, from Cascade Mountain, Bow River valley, westward 

 on the line of the Canadian Pacific Railway, growing with P. ablicau- 

 lis. Not noticed in the Selkirk Mountains. (Macoun.*) Cascade 

 Mountains, 6,500 to 7,000 feet, forming an open belt of trees mingled 

 with P. albicaulis, on the Galton Range, at 6,000 feet, and in the 

 Rocky Mountains, at 7,000 feet, growing with P. albicaulis. (LyalL} 

 Probably on all mountains of sufficient height to the eastern edge of 

 the Rocky Mountain range, as it occurs on the summit of Sheep Moun- 

 tain on the east side of "Waterton Lake, where specimens were collected 

 by Mr. McConnell (1881.) Summit of the South Kootanie Pass. Not 

 observed on the mountains in the Peace and Pine River passes. 

 (Dawson.') 



