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'';
(d) Temple oranges;
(e) Tangelos; and
(f) Honey tangerines. [30 FR 13933, Nov. 4, 1965, as amended at 42 FR 59368, Nov. 17, 1977]