There can be no better emblem for Rome - for its ambitions, its joys, its persnickityness - than the hard- shelled, soft-centered, many-layered, multi-hued artichoke, in Italian carciofo, plural carciofi. That there are prickly spines and a choke only add to the "Roman-ness" of the artichoke. Moreover, the regal-looking immature fruit of Cynar scolymus responds well to the cook's touch, producing the most delectable and varying flavors of virtually any plant. It also yields the basis for an unusual digestivo, known as Cynar, taken from the Latin name. In fact, the artichoke contains many enzymes and sugars - one of them mimics insulin - that are useful to the human body. This explains why artichokes and their extracts figure so prominently in folk medicine in the Mediterranean. Modern medicine has proved out these informal applications to a certain degree, although the employment of artichoke extract as a predictor for pregnancy seems to have been lost to the ages. Artichokes are mildly regulating to the digestive system, and have a natural cholesterol inhibitor. (This all suggests that the so-called "Mediterranean diet" needs to be examined on a micro-nutritional level, rather than in a broad-brush approach that dwells only upon general headings such as "vegetables," "fish," and "oil.") The word carciofo derives from harsuf. However, that Arabic word referred to what today we call the Jerusalem artichoke and was mistakenly applied to the regular artichoke. While there is some evidence that there were artichokes in ancient Egypt and Carthage, it appears that these were wild growing and gathered rather than cultivated and harvested. For general purposes, it can be safely said that the artichoke was first cultivated in Sicily, southern Italy and the Mediterranean coast of what is now France, and that it first reached central Italy during the Etruscan- Roman period in approximately the 4th century B.C. By the year 400 A.D. the artichoke was being raised in northern Italy. Other experts contend that the artichoke was, in fact, first domesticated and intensively cultivated around Rome, specifically between Civatecchia and the Tolfa mountains, again with a significant assist from the Etruscans. The progress of the artichoke through Provence northward seems to have occurred at about the same speed, although the farming of them spread most rapidly in northern France under the encouragement of Catherine de'Medici, who convinced the French of the artichoke's value by shrewdly repeating the old wive's tale that the hearts were an aphrodisiac. (Certainly, aside from Italy, no other country has held the artichaut in such high esteem as has France.) The violet-tinged artichoke of Provence is perhaps the most beautiful of the family, not only because of its luscious color but because of its multiple fruiting on the end of its stalks. The variety is tiny, and on top of that, is eaten young before the choke has had time to develop. All areas of Italy have their ways of cooking artichokes, or have adapted a dish, generally from the south. But it is in Rome that the art of artichokes reaches its zenith. One noteworthy observation about the cooking of artichokes concerns its mixing with other foods. Artichokes go well with other strong flavors. They are best with lemon, oil, and fresh herbs, although the French eat artichokes with mayonnaise and its variants. Choose artichokes that are not discolored and whose leaves are tightly closed, or only slightly open. They should never be raggedy or mottled in appearance.