470 • (iEOLOUICAL SIKNEY OF CANADA. 



Cyi)ro8!> Hills aiv imimM-ous small i;;rovos. It ascends the Bow Rivor 

 from Caly;ary, and bocoinos intermixed witli P. Emjclmanni at Silver 

 City, within the JuH'Uy Mountains. {Macoun.) On the Atlialiasc-a in 

 Latitude r)4' 7' :U", Longitude 11S° 48'. (Danson.) Throughout Nova 

 Scotia and Canada, to within twent}' miles of the Arctic Sea, and on 

 the Coppermine Uiver ; in Lat. 67^° it attains a height of twenty 

 feet or more. (Eichanhon.) 



(2084.) P. Engeimanni, Kngelm. Mngelmann's Spruce. 



Abux ni(jra, Engeliuaun in Am. .lotir. Sci., 2nd series, XXXIII., ooO. 

 ..1. EiHjdmanni, Parry. Macoun's Cat. No. 1C>;»4. 



This species is first mot with in the Bow Eiver valley, on the line of 

 the Canadian Pacitie Ivailway, about the Cascade Mountain, but does 

 not completel}" supersede F. alba until we pass Castle Mountain. 

 At Laggan and all points westward it is the only spruce, and at Kick- 

 ing Horse Lake there are groves contaiidng many fine trees. In the 

 Columbia valley and all valleys of the Selkirk Mountains, it grows to 

 a great size, often being four feet in diameter and having an average 

 height of over 150 feet. It is more a tree of the valleys than of the 

 mountains, seldom ascending above 6,000 feet. It is possible that 

 another species which we now refbr to P. alba, belongs here. (Macowi.) 

 This tree appears to characterize the interior plateau and eastern 

 part of the Province of British Columbia, with the exce])tion of the 

 dry southern portion of the former, and forms dense groves in the 

 mountains. It borders nearly all the streams and swamps in the 

 northern portion of British Columbia between about 2,500 and 3,500 

 feet elevation, and forms dense groves in the valleys of the Rocky 

 Mountains. In the north-eastern part of British Columbia, varieties 

 occur which, according to Prof. Engelmann, who has examined my 

 specimens, are indistinguishable from P. alba, and in some places in 

 the Peace River basin these varieties preponderate. Specimens col- 

 lected on the Peace River plateau (Lat. 55° 46' 54", Long. 120', altitude 

 2,600 feet), are still referrable to P. Engelmanni, h\it trees on the Atha- 

 basca (Lat. 54° 7' 34", Long. 118' 48') belong to P. alba. The north- 

 ern tmd north-eastern range of Engelmann's sj)ruce is, therefo;-e, 

 indeterminate. {Daicson.~) 



(2085.) P. SitchensiSi Carr. Western Spruce. Menzies' Spruce. 



Pinm Sitchensis, Bong. Hook. Fl. II., 164. 



Aides Menzieffii, Lindley. Macoun's Cat. No. 1693. 



Pinus Menziesii, Douglas. Hook. Fl. II., 162. 



Abies Sitchensis, Lindley & Gordon in Jour. Hort. Soc, London, V., 212. 



This tree seems to be confined chiefly to the immediate vicinity of 

 the coast of British Columbia, where it attains a large size, and is, to 



