114 TREES <>k NEW ENGLAND. 



Maine. - abundant in Aroostook county, Piscataquis county, 



Somerset county at least north to the Moose river, along 

 the boundary mountains, about the Rangeley lakes and locally 

 on Mount Desert island; New Hampshire, - -in the White 

 mountain region ; Vermont, Mt. Mansfield, Willoughby 

 mountain (Pringle) ; undoubtedly in other sections of these 

 states ; to be looked for along the edges of deep, cool swamps 

 and at considerable elevations. 



South of New England, probably only as an escape from cultiva- 

 tion ; west through the northern tier of states to the Rocky moun- 

 tains, thence northward along the mountain ranges to Alaska and 

 south to New Mexico and California. 



Habit. A shrub 3-10 feet high, or small tree rising to 

 a height of 15-25 feet, reaching its maximum in northern 

 New England, where it occasionally attains a height of 30-35 

 feet, with a trunk diameter of 15 inches. It forms an open, 

 wide-spreading, pyramidal or roundish head, resembling the 

 preceding species in the color of bark, in foliage and fruit. 

 Whether these are two distinct species is at the present prob- 

 lematical, as there are many intermediate forms, and the same 

 tree sometimes furnishes specimens that would indubitably be 

 referred to different species. 



Bark. On old trees light brown and roughish on the trunk, 

 separating into small scales curling up on one side ; large 

 limbs light-colored, smoothish, often conspicuously marked 

 with coarse horizontal blotches and leaf-scars ; season's shoots 

 light brown, smooth, silvery dotted. 



Winter Buds and Leaves. Terminal bud 1 inch long, 

 lateral inch, appressed, brownish, scythe-shaped, acute, more 

 or less glutinous. Leaves pinnately compound, alternate, 

 stems grooved and reddish above, enlarged at base ; stipules 

 deciduous ; leaflets 7-15, the odd one stalked, 1-3 inches long, 

 1 inch wide, bright green above, paler beneath, smooth, 

 mostly ovate-oblong, serrate above the base ; apex rounded or 

 more usually tapering suddenly to a short point, or rarely 

 acuminate ; base inequilateral. 



