Search for your citrus cultivars here:

http://lib.ucr.edu/agnic/webber/Vol1/Chapter4.html

http://idtools.org/id/citrus/citrusid/factsheet_index.php

Citrus directory ver. 2.0

"INTRODUCTION
When one is interested in citrus fruits, the complexity of the plant group quickly becomes apparent.
Scientist do not make exceptions for the fact that over the last 300 years a number of important taxonomic classifications have been proposed, each different in their own way, for the Citrus genus.
Add to this the large variety of local names; some resulting from local oral traditions, others from the commercial arena of the second largest global fruit market after grapes, and it is easy to understand why nothing is simple in the garden of the Hesperides..."

http://corsica.corse.inra.fr/sra/synonym.pdf