9k 



G. P. W. Collection. PlATE XLV 



Citrus Aurantium. 



ISAHIA^ OR WASHINGTON NAVEL. 



This variety was first introduced into the United States from 

 Brazil, and is now the most popular of all the oranges. It is cul- 

 tivated extensively in California, in which State the first trees 

 of its kind were planted ; for this reason it is often called the 

 Riverside Navel. The fruit is large, solid, and heavy. It is seed- 

 less, and has a prominent navel mark at the apex. The brilliant 

 orange color of the skin is one of its characteristics. Grafted and 

 budded trees of this variety of orange may be found growing in 

 many localities in the Hawaiian Islands, but the fruit is not as 

 fine as it should be, as, with few exceptions, it has a tendency 

 to become very dry and woody. 



