One of these objects sitting in front of a silver plate on a shelf is one of many symbols of affluence in the background of Quentin Matsys's The Money Changer and his Wife. One of them is held by a contented, long-haired two-year-old Raoul Levert in one of the final paintings by Vincent van Gogh. Camille Lefèvre designed a pair of oval galleries for a Paris museum named for these objects. These objects and (*) flowers are the brightest elements at the (10[1])top edge of a painting in which some of them are occluded by a cloud that Mercury pokes with his caduceus. Four of these expensive, imported objects sit on the sideboard and windowsill (10[2])at the left of the Arnolfini Wedding. These objects' similarity (10[1])to the orbs on the Medici coat of arms may be why Sandro Botticelli set Primavera in a grove of trees that grow, for 10 points, what citrus fruit? ■END■