The root of this tree is not, as many persons have imagined, the same as the substance known as zimpiberi, or, as some call it, zingiberi, or ginger, although it is very like it in taste. For ginger, in fact, grows in Arabia and in Troglodytica, in various cultivated spots, being a small plant[466] with a white root. This plant is apt to decay very speedily, although it is of intense pungency; the price at which it sells is six denarii per pound. Long pepper is very easily adulterated with Alexandrian mustard; its price is fifteen denarii per pound, while that of white pepper is seven, and of black, four. It is quite surprising that the use of pepper has come so much into fashion, seeing that in other substances which we use, it is sometimes their sweetness, and sometimes their appearance that has attracted our notice; whereas, pepper has nothing in it that can plead as a recommendation to either fruit or berry, its only desirable quality being a certain pungency; and yet it is for this that we import it all the way from India! Who was the first to make trial of it as an article of food? and who, I wonder, was the man that was not content to prepare himself by hunger only for the satisfying of a greedy appetite? Both pepper and ginger grow wild in their respective countries, and yet here we buy them by weight—just as if they were so much gold or silver. Italy,[467] too, now possesses a species of pepper-tree, somewhat larger than the myrtle, and not very unlike it. The bitterness of the grains is similar to that which we may reasonably suppose to exist in the Indian pepper when newly gathered; but it is wanting in that mature flavour which the Indian grain acquires by exposure in the sun, and, consequently, bears no resemblance to it, either in colour or the wrinkled appearance of the seeds. Pepper is adulterated with juniper berries, which have the property, to a marvellous degree, of assuming the pungency of pepper. In reference to its weight, there are also several methods of adulterating it. CHAP. 15.—CARYOPHYLLON, LYCION, AND THE CHIRONIAN PYXACANTHUS.