IP s t e I s i a i6l 



53°; thence southward to Wyoming and the 

 Sierras of southern California. 



This tree is not reported from Vancouver 

 Island, but as it grows in the adjacent Coast 

 ranges of the mainland, it may occur in the high 

 mountains of the northern and central parts of 

 the island. 



Larix Adanson. Fam. PL 2:480. 1763. 



A genus differing from Pin us chiefly in the 

 cones, which ripen the first year and have un- 

 thickened scales, and in the leaves, which are 

 deciduous, scattered and spirally arranged on 

 the long shoots of the tree, crowded and forming 

 many-leaved fascicles on the dwarf shoots. 

 Three species occur in North America, none of 

 which is reported from Vancouver Island. One, 

 Larix laricina (Du Roi) Koch., a swamp. 

 inhabiting tree of northeastern North America, 

 finds its western limit in the Rocky Mountains of 

 northern British Columbia and the Yukon re- 

 gion; one, Larix occidentalis Nuttall, is a large 

 tree of the semi-arid region east of the Cascade 

 Mountains; the third, Larix LyaUii Parlatore, 

 an alpine tree occurring near timber line in the- 



