64 KEY FOR THE IDENTIFICATION OF TREES AND SHRUBS 



100. Under surface of leaf 

 smooth, fruit black. 

 Black Chokeberry 

 Pyrus melanocarpa (Michx.) 

 Wllld. 

 98. Leaf 1-2 inches long, 

 wedge-shaped, coarsely 

 toothed, scurfy. 

 Groundsel 



Baccharls halimt fol ia L. 

 98. Leaf J-2 inches long, 

 obovate, short-petioled . 



Genus Berberis .... 101 

 101. Leaf 1-2 inches long, 

 bristle-toothed, in 

 clusters above a 

 triple spine which 

 is an altered leaf. 

 Common Barberry 

 Berberis vulgaris L. 

 101. Leaf 2-1 inch long, 

 margin entire, 

 spine single. 

 Japanese Barberry 

 Berberis Thunbergll DC. 

 98. Leaf 1-2 inches long, 

 sprinkled with resinous 

 or waxy dots. 



Genus Gaylussacia, . . 102 

 102. Leaf obovate-oblong, 

 thick and shining, 

 needle-pointed, green 

 on both sides. 

 Swamp Huckleberry 

 Gaylussacia dumosa (Andr. ) 

 T. & G. 

 102. Leaf ovate-oblong, 

 thickly clothed with 

 shining, resinous 

 globules . 

 Moor Huckleberry 

 Gaylussacia baccata (Koch.) 

 102. Leaf oblong-ovate, 

 blunt, pale, soft- 

 hairy beneath. 

 Wood Huckleberry 

 Gaylussacia frondosa 

 (L. ) T & G." 



