KEY TO GENERA AND SPECIES 



eastern Asia. (Fig. 18.) 

 Paulownia, Paulownia to- 

 mentosa (Thunb.) Steud. 



1 8. Prominent veins at the 

 base of the blade 5 or 

 more * 19. 



1 8. Prominent veins at the base 



of the blade 



5) 20. 



3 * (rarely 



Fig. 19. Sweet Gum. 



19. Leaves strongly star-shaped. Conn, and south- 

 westward, also cult. (Figs. 19, 20.) Sweet 



Fig. 20. Sweet Gum. 



Gum, Red Gum, Alligator-wood, Liquidam- 

 bar, Liquidambar Stryaciflua L. 



* In some cases the lowest veins are less prominent than the 

 upper. At such times uncertainty may arise as to which No. 18 

 should be followed when trying to decide between 3 and 5 veins. 



