TREES TOLD BY THEIR BARK OR TRUNK 61 



effect by shedding in large, thin, brittle plates. The newly 

 exposed bark is of a yellowish green color which often turns 



FIG. 49. Seed-balls of the Oriental Sycamore. 

 Note one Seed-ball cut in half. 



nearly white later on. Round seed balls, about an inch in 

 diameter, may be seen hanging on the tree all winter. In 



