KEY TO GENERA AND SPECIES 133 



195. Fruit prickly 196. 



195. Fruit smooth. Petals 4 197. 



196. Petals 5, white, spreading. Leaflets usually 7. 



Cult. Native of southeastern Europe and 

 Asia. (Figs. 253, 254.) Horse-chestnut, 

 Common Horse-chestnut, Aesculus Hippo- 

 castanum L. 



Fig. 254. Horse-Chestnut. 



196. Petals 4, yellow, erect. Leaflets usually 5. 



Margins toothed, with tufts of hairs in the 

 notches. Central Penn. southward and 

 southwestward, also cult. (Fig. 255.) 

 Fetid Buckeye, Ohio Buckeye, Aesculus 

 glabra Willd. 



197. Petals yellow. Western Penn. southward and 



