Fruit means any or all varieties of the following types of citrus fruits grown in the production area:
    
    
        
        (a) 
         Citrus sinensis, Osbeck, commonly called “oranges”;
     
    
        
        (b) 
         Citrus paradisi, MacFadyen, commonly called “grapefruit”;
     
    
        
        (c) 
         Citrus nobilis deliciosa, commonly called “tangerines”;
     
    
    
    
    
        
            Code of Federal Regulations
        
        [30 FR 13933, Nov. 4, 1965, as amended at 42 FR 59368, Nov. 17, 1977]