Abies concolor, var. violacea 
Native of Western North America. 
Nat. Order: ConmFER«. Tribe: ABIETINEZ. 
Abies concolor, Lindley and Gordon in Journ. Hort. Soc. Lond. 
v. 210, name only (1851); Sargent, “ Silva N. Amer.” xii. 121 
to 613 (1898); Veitch, Manual, ed. ii. 501 (1900). 
A bies concolor violacea forms one of the most distinct and 
attractive ornaments of our parks and gardens to be found 
among the Fir tribe. It is also one of the most widely 
distributed of the Western North American silver firs. 
Professor Sargent in his great work quoted above, states that 
it is spread over the region extending from the Rocky Moun- 
tains westwards to the coast range of California, and in a 
meridional direction from Oregon to South California and 
Arizona. At its northern limit and on the mountain ranges 
of Colorado it endures winters as severe as the coldest known 
in Great Britain. In Arizona and South California it thrives 
in a climate like that of the South of France. Under such 
diverse conditions it is not surprising that it should vary in 
the dimensions attained, and in other particulars. The tree 
represented in the figure is the 4. concolor of Colorado and 
the Rocky Mountains, which was discovered a few years 
earlier than the Californian variety, but not introduced here 
till a long time after it. In its native home it seldom exceeds 
100 feet in height; it endures heat and dryness better than 
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