[Iamikouk ov 1'rees oI'- the Noktii i;i;x States and Caxada. 



41 



The Arbor- Vit:T! is a tree commonly from 

 50-UO (t. ill lieiylit and 'J.-'.'> ft. in diameter of 

 trunlv', or somidimes larger, and develops a 

 wide-ljased pyramidal head \^■|len growing 

 apart from other trees. It sometimes forma 

 exclusive and dense forests in swampy locali- 

 ties and along tlie banks of streams, but is 

 oftener in company with the Ulack Ash, ywamp 

 tSpruce, Canoe Birch, Red and Silver Maples, 

 Tamarack, Balsam Fir, etc. It is abundant 

 and of quite general distribution in sulliciently 

 moist localities throughout the northern part 

 of its range, but in the southern Alleghenies 

 occurs only at high altitudes. 



The fragrant light wood of the Arbor-Vitic, 

 of which a cubic foot when absolutel\' dry 

 weighs 19.72 lbs., is highly valued in the con- 

 struction of light boats, canoes, etc., and is 

 one of the best woods within its realm for 

 shingles, and from the slim forest-grown trunks 

 of this tree more than any other come the fence 

 posts and telegraph poles of the northeastern 

 states and Canada. It is often planted for 

 ornamental purposes and several luirsery 

 forms are found. Afi'dic-inal properties are 

 ascribed to its lca\"cs.i 



Liarcs of tlic' ullimatc lii-ani'lilr(s srale-likc. ap- 

 pressed, about Vn in. lon,i; apiciilatf and ^daiidnlur. 

 the i lateral rows stron.nl.v krrlcd and tlii' otlvr 

 two rows flat, forming a \'('r,v flat hranclilct. 

 Floircrs in April and May. inconspicuous ; stanii- 

 nate yellow : [)istil]ate purplish green, f'oac.s- ma- 

 tni-e in eai'l.\' autumn. VU-Vj in. lone:: sci-ds ahoiit 

 Is hi. Ions,' Willi wiuKs about as liroad as dii' body.^ 



1. A. \V., I, -J-l 



2. For genus see [i, 4L'I 



