70 CITRUS FRUITS AND THEIR CULTURE. 



being sweet and pleasantly flavored, with bitter rind 

 and partitions. On careful comparison the seeds show 

 some slight differences. 



Filer. Form round or roundish oblong; produced 

 singly, or in clusters of from two to seven; size small, 

 11-8x1 3-16 inches, 1 9-16 x 1 1-2 inches ; color yellow to 

 reddish orange ; apex rounded or flattened, sometimes with 



Fig. 14. Sour Orange Fruit. 



the remains of the pistil still attached; base rounded; 

 calyx small, elevated, stem slender ; rind rather rough and 

 pitted, 1-16 to 1-8 inch thick; oil cells small, flattened, 

 frequently double convexed; sections six to eight, fre- 

 quently very irregular, occasionally even being arranged 

 in two rows at right angles to each other across the fruit ; 

 flesh fine grained, dark orange in color; juice sacks 

 small, spindle-shaped ; juice plentiful, colorless ; pulp melt- 

 ing; flavor acid, rather musky; pith small, 1-8 inch or 



