Marketing classifications often do not correspond to taxonomic ones. The "Ambersweet" cultivar is classified and sold as an orange, but does not descend from the same common ancestor as sweet oranges; it has grapefruit, orange, and mandarin ancestry. Fruits are often sold as mandarin, tangerine , or satsuma (which may be synonyms  ). Fruit sold under these names include many which are, like Sunbursts and Murcotts , hybrids with grapefruit ancestry.    The diversity of fruits called limes is remarkable; some, like the Spanish lime and Wild lime , are not even citrus fruit.