2 o KEY TO GENERA AND SPECIES 



29. Leaves opposite or whorled 30. 

 29. Leaves alternate 31. 



Fig. 36. Osage Orange. 



30. Leaves mostly 3 at a node (whorled), rounded 

 or pointed at the base. New Brunswick 

 southwestward. (Fig. 37.) Buttonbush, 

 Cephalanthus occidentalis L. 



30. Leaves opposite, with an abrupt or slightly 

 heart-shaped base. Cult, and escaped. Na- 

 tive in Eurasia. (Fig. 38.) Lilac, Syringa 

 vulgar is L. 



30. Leaves opposite, blade broadest at the middle 



or above. N. J. southwestward and cult. 

 (Fig. 39.) Fringe-tree, White Fringe, 

 Chionanthus virginica L. 



31. Leaves 7 inches or more long Magnolia, 



149. 

 31. Leaves less than 7 inches long 32. 



