196 HOW TO KNOW WILD FRUITS 



PORTER'S PLUM 

 Prunus AUegheniensis Plum Family 



Fruit. — The dark purple globose drupe is 

 small, only about half an inch in diameter. It 

 has a bloom. The flavor is pleasantly acid. 

 The stone has a groove on one side and a slight 

 elevation on the other. August. 



Leaves. — The lanceolate or ovate-oblong 

 leaves are finely toothed, and often have a 

 long pointed apex. 



The flowers resemble those of Prunus Ameri- 

 cana. 



This is a low tree or straggling shrub of the 

 Alleghany Bluffs. It seldom bears thorns. 



SLOE. BLACKTHORN 



Prunus spinosa Plum Family 



Fruit. — The globose drupe is about half an 

 inch in diameter. It is black, with a bloom, 

 and grows singly or in pairs from the sides of 

 the branches. The stone has one sharp edge. 



Leaves. — The ovate or oblong leaves are 

 obtuse at the apex and narrowed at the base. 



