3 6 Trees with Simple Leaves. [A n 



A variety with its leaves downy, at least on the under 

 side, and with its red fruit large and downy (var. mollis), 

 is found from Central Michigan southward and westward. 



Fig. 17. Black Thorn, Pear Thorn. C. tomenibsa, L. 

 Leaves, SIMPLE ; ALTERNATE ; EDGE SHARPLY AND UN- 

 EQUALLY TOOTHED (sometimes with quite deep and 

 sharp cuts, almost forming small lobes). 



Outline, oval or reverse egg-shape. Apex, slightly pointed. 

 Base, tapering in a hollow curve and along the sides 

 of the leaf-stem to a point. 



Leaf-stem, bordered by the leaf, to its base. 



Leaf, about three to five inches long, one and a half to 

 three inches wide ; upper surface smoothish, and fur- 

 rowed above the ribs ; under surface downy, at least 

 when young ; rather thick ; permanently downy on 

 the ribs. Thorns, one to two inches long. 



Bark of trunk, smooth and gray. New twigs, light 

 greenish-brown. 



Flowers, often one inch across ; white ; eight to twelve in 

 a cluster ; at the ends of the branches ; fragrant. 

 May, June. 



Fruit, about one half inch in diameter ; round or pear- 

 shaped ; orange-red or crimson ; edible. October. 



Found, through the Atlantic forests to Western Florida, 

 and from Eastern Texas far westward. Common. 



A thickly branching tree (or often a shrub) eight to 

 twenty feet high ; the most widely distributed of the 

 American Thorns. It varies greatly in size, and in the 

 style of its fruit and leaves. 



