182 



.TREES OF THE NORTHERN UNITED STATES 



4-sided, rigid, stout, rather obtuse, dark shining green, entirely sur- 

 rounding the branches. Cones 2j to 3 in. long, cylindrical, with 

 soft, thin, loose, rounded scales, uneven on the edges. A beautiful, 

 conical, slow-growing, compact tree, reaching the height of 75 ft. ; 

 often cultivated ; from the Plack Sea. Hardy. 



GENUS 95. TStTGA. (HEMLOCKS.) 



Leaves evergreen, scattered, flat, narrowed to a green 

 petiole, appearing 2-ranked by the direction they take, 

 whitened beneath. Fertile catkins and cones on the end 

 of last year's branchlets. Cones 

 pendulous, maturing the first year; 

 scales thin, persistent. 



1. Tsuga Canad6nsis, Carr. (COMMON 

 HEMLOCK.) Leaves short-petioled, linear, 

 y z in. long, obtuse, dark green above and 

 white beneath ; the young leaves in the 

 spring a very light green. Cones oval, 

 y z to % in. long, pendent, of few (20 to 

 40) scales. A large, very beautiful tree, 

 50 to 80 ft. high, abundant in rocky woods, 

 and cultivated throughout; spray light 

 and delicate. 





2. Tsuga Caroliniana, Engelm. (MOUN- 

 TAIN-HEMLOCK.) This is similar to the last; 

 its leaves are larger, glossier, more crowd- 

 ed; its cones 

 are larger, and 

 have wider and 

 more spreading 

 scales ; the tree 

 is smaller, rare- 

 ly growing 40 

 ft. high. Wild, 

 but scarce, in 

 the higher Al- 



T. Caroliniana. 



leghanies, south; beginning to be cultivat- 

 ed north, and probably hardy throughout. 



3. Tsuga Sieboldii. (JAPAN HEM- 

 LOCK.) Leaves V z to % in. long, linear, 



