Example; C. Mari's Love flowered from a seedling. Unknown quality till then. It flowers as a great orchid (exceptional qualities) & then given what is known as a 'clonal' name ie. Taka. From there, if mericloned it remains for ever more, C. Mari's Love 'Taka'. Many other plant s from the cross may have flowered & some given a clonal name or nothing as they weren't good enough. Occasionally, one of the mericlones will flower differently, offering notable differences then an additional name can be added BUT it should be noted that it is a "sport" from that particular mericlone. A grower can only give a plant a "clonal name" if that grower flowers that plant from a seedling, NOT a mericlone, that is already known. The Grex Name is the registered name of that particular cross of 2 plants. By rights, the originator of that cross has primary right to name the cross but with written permission, another grower may name & register the cross. (Hasn't stopped some).