126 KEY TO GENERA AND SPECIES 



186. Leaves simple 187. 



186. Leaves compound. Western New England 



southward and westward, also cult, and 

 escaped. (Fig. 237.) Box Elder, Ash- 

 leaved Maple, Acer Negundo L. 



187. Juice milky. Cult. Native in Eurasia. 



(Figs. 236, 238.) Norway Maple, Acer 

 plat a no ides L. 



187. Juice not milky 188. 



188. Flower (or fruit) stalks arranged along a com- 



mon much elongated axis 189. 



188. Flower (or fruit) stalks apparently arising 



from a common point 191. 



189. Flower (or fruit) clusters 



erect or nodding, but not 

 pendulous. Newfound- 

 land to northern New 

 England and west- 

 ward; southward in the 

 mountains. (Fig. 239.) Fig 23Q 



Mountain Maple, Acer Maple. (Leaves often 



T longer.) 



spicatum Lam. 



189. Flower (or fruit) clusters drooping or pendu- 

 lous 190. 



