28 



I-' ... bti t ..f'th.- Rocky Mountain- may b<- divided into four groups, as 



.u-.U th.-ir ijiliical distribution within the Dominion. 



\ nortl jroup, inrluding tlio white and black spruces, larch, Bank- 



spen, lialsam poplar, canoe birch, willows and alder. These 

 r tli.- rritory down to about the line of the white pine. 



A central i;n>np of atiout forty species occupying a belt of country from 

 ;>inr line to that of the buttonwood. 



rroup, mil tracing the buttonwood, black walnut, the hickor^ 

 tulip tivr, prickly ash, sour-gum, sassalVus, and flowering dogwood, 

 whii- nl only in a small area in the southern part of Ontario. 



4. A \vr>trni -roup, consisting of the ash-leaved maple., burr oak, cotton- 

 > I. .ni'l ^i-ci-ii ash. which are scattered sparingly over the prairie and wooded 

 Jons \ve< of Red River, and Lake Winnipeg. 



In tin- western peninsula of Ontario the forests present a remarkable rich- 

 ness in the number of species to be found growing together. In some localities 

 as many as fifty different kinds may be counted on a single farm lot. A more 

 varied mixture is probably not to be met with in any other part of the continent, 

 or perhnp^ in the world. 



