52 



TILLEES OF THE GROUND 



CHAP. 



plants by land than by sea. This is shown clearly 

 by the fact that though China and Japan are 

 comparatively speaking so near to one another, yet 

 communication between the two was late. Thus 



FIG. 12. Blossom and Fruit of Orange. 



the fruits called citrus, which includes the different 

 kinds of oranges, lemons, etc., are natives of the 

 Far East, but were introduced at an early date 

 into Western Asia. They did not reach Japan, 

 however, until the first century after Christ, about 



