Not sure if this belongs here, but it will lead to something that possibly does. When I lived in the Philippines there was this small citrus called kalamansi that was used for juice, very similar to limes but smaller.

The reason I ask if it grows here is I make a liqueur with Thai rum, sugar and limes. the limes are great, the idea is to get them small enough to serve on a tooth pick with a glass of the liqueur. My Dad used to make it with brandy and kumquats which were the perfect size. Anybody seen kalamansi?

I haven't seen them but this may help others recognise the name.

Kalamansi (C. microcarpa) also known in Malaysia as limau kesturi.

I haven't seen them but this may help others recognise the name.

Kalamansi (C. microcarpa) also known in Malaysia as limau kesturi.

Ah Ha! We cut to the chase.

http://en.wikipedia.org/wiki/Calamondin

I know exactly what you mean by Calamansi from my years in the Philippines. Never seen them here, though. I think the small local limes are too entrenched in the cuisine to make growing something else appealing.