Note: Do not rely on this information. It is very old.
Bergamot
Bergamot, the name originally of Mentha citrata, whence a fragrant oil is obtainable. True essence of Bergamot is obtained from the unripe fruits of the Calabrian Bergamot orange (Citrus Bergamia). It is used in perfumery and confectionery. The Lime (Citrus Limetta) is known in France as Bergamotte.