ii6 KEY TO GENERA AND SPECIES 



175. Flower and fruit-stalks apparently arising 

 from a common point, or else from an axis 

 hardly longer than the long individual 

 flower and fruit-stalks 177. 



Fig. 218. Peach. Fig. 219. Peach. 



176. Marginal teeth of the leaves very sharply 

 pointed. Newfoundland southward and 

 westward. (Fig. 215.) Choke Cherry, 

 Prunus virginiana L. 



176. Marginal teeth of the leaves blunt, incurved, 

 or glandular. New Brunswick southward 

 and westward. (Figs. 216, 217.) Black 

 Cherry, Wild Black Cherry, Rum Cherry, 

 Prunus serotina Ehrh. 



177. Flower and fruit-stalks very short, I of an 



