SP> Sure. I have an ornamental (edible) miniature potted orange.
 SP> Occasionally I will pluck and eat one of its tender-skinned but VERY
 SP> sour fruits, and will sometimes crunch a seed. The seed is always
Most people are unaware that the sweet orange is a modern development.
The Arabs brought oranges into Spain to contribute their scent in the
walled "persian" style gardens.  The fruit was sour, and considered
inedible.
There is one variety which is still sour.  (Seville orange?)  According
to legend, a Scots merchant was sold a load of these, assuming they were
sweet.  But when they proved to be unsellable, and with his money spent
on a perishable load of goods, he was desperate.  His wife came up with
the idea of slicing them thinly, and preserving them with loads of
sugar, Orange Marmalade.  And to some extent explains why it is a taste
largely of the Commonwealth.
... Only the survivors write histories.
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