There are people who think that the grapefruit is the result of a man‐made cross between orange and lemon, but in fact it is a natural fruit, the largest of the citrus tribe. Recent research into its origins suggest that it may well be a natural mutation from the pear‐shaped, coarser, bitter shaddock, or pomelo. Occasional ‘sports’ from established species of the citrus family are not uncommon, and in this case, the result has been of particular benefit to man.
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