The varieties they grow:

https://todolicitrusfundacio.org/en/the-citrus-collection/varietal-groups/

This list includes varieties of Citrons, Mandarins, Pummelos, Lemons, Limes, Bitter Oranges, Sweet Oranges, Grapefruits, Kumquats, Papayas, Australian Limes and citrus related varieties, including some hybrids.