chaz wrote:

What kind of lemons is it I generally see in the supermarket? What about
limes?

The main commercial lemon is the Eureka. Few other varieties are
ever seen.

Two or three different varieties of lime are common.

If you live in a climite where citrus is often planted, a good
nursery should have information comparing the different varieties
of each kind of citrus.

--
David E. Ross
Climate: California Mediterranean
Sunset Zone: 19 -- interior Santa Monica Mountains with some ocean
influence (USDA 10a)
Gardening pages at http://www.rossde.com/garden/