The Trees of Wyoming. 107 



ter. It occurs on most of the larger streams of the state, 

 and may be at. once separated from the next by its black 

 fruit. 



(2) LONGSPINE HAW. 



(Crataegtts macracantha (Lindl.) Loud.) 



Description. Leaves sharply double-toothed, dark green, smooth above, 

 slightly hairy on the veins beneath: calyx glandular: fruit globose, about 

 y% of an inch in diameter, red when ripe. 



This species is more shrub-like and with more strag- 

 ling branches but it is equally desirable for home planting. 

 Its wealth of white blossoms and ijt>s red fruit make it an 

 attractive shrub or tree. While the fruit has no great 

 value yet of the two this is probably superior to that of 

 the preceding. This species is not known to the writer 

 as occurring in this state outside of Crook county but it 

 probably exists elsewhere also. 



14. SERVICEBERRY. 



(Amelanchier) 



" The shad-bush, white with flowers, 

 Brightened the glens." Bryant. 



This is the name given to a few species of shrubs and 

 small trees belonging mostly to North America, and vari- 

 ously known asjuneberry, ' sarvice ' berry, and shad-bush. 

 It generally occurs in broken, hilly country and produces 

 an abundance of edible, berry-like fruits. The species given 

 below is common throughout the Rockies and is the only 

 one that becomes a tree in this state, and that rarely, 

 though it is abundant as a shrub. 



(1) WESTERN SERVICEBERRY. 



(Amelanchier alnifolia Nutt.) 



Description. Leaves thick, rounded or elliptic, toothed around the up- 

 per half only: flowers in clusters (racemes), white, appearing before or with 

 the leaves: fruit purple or nearly black when mature, ^ to y$ inches in di- 

 ameter. 



