KEY TO GENERA AND SPECIES 



westward and southward, also local in 

 eastern Mass. (Figs. 150, 151.) Laurel 

 Oak, Shingle Oak, Quercus imbricaria 

 Michx. 

 127. Mature leaves of fruiting branches less than 



Fig. 151. Laurel Oak. 



an inch wide at the middle, and about 5 

 times as long as broad.* N. J. southward 

 and westward. (Fig. 152.) Willow Oak, 

 Peach Oak, Quercus p hello s L. 

 127. Mature leaves of fruiting branches 

 usually broad and rounded in the 

 upper third, often with a tendency 

 to become 3-lobed near the apex.* 

 Del. southward, also in the lower 

 Mississippi valley. (Fig. 153.) Willow 

 Water Oak, Quercus nigra L. 



* Leaves of vigorous shoots are often strongly and sharply lobed. 



