Citrus

Genus of trees with fleshy, juicy fruits; there is considerable confusion over the names because of hybridization and mutations. Sweet orange Citrus sinensis; various cultivars including Valencia, Washington navel, Shamouti. Sour, bitter, or Seville orange, C. aurantium, is too bitter to eat and is used for marmalade. Lemon, C. limon. Lime, C. aurantifolia. Citron, C. medica, has thick, white inner skin and is used mainly to make candied peel. Pomelo (shaddock), C. grandis, is the parent of the grapefruit. Grapefruit, C. paradisi, is a hybrid of pomelo and sweet orange. Tangerine, satsuma, mandarin, calamondin, and naartje are small fruits with loose skins. Clementine, a hybrid of tangerine and bitter orange, is sometimes regarded as a variety of tangerine. Mineola is a hybrid of grapefruit and tangerine. Ortanique is a hybrid of orange and tangerine. Citrange is a hybrid of citron and orange. Tangors are hybrids of tangerine and sweet orange. Ugli fruit is a hybrid of grapefruit and tangerine. Tangelo is a hybrid of tangerine and pomelo. All are a rich source of vitamin C and contain up to 10% sugars (glucose and fructose).