Large quantities of beans are harvested in this valley for the support of the slaves on the estates and plantations, but the market of Lima is principally supplied from _valles_, the valleys on the coast to the northward.
Although abundance of tropical and ultra-tropical fruit trees are cultivated in the gardens and orchards belonging to the farm houses, and _quintas_, seats, in the valley, I shall defer an account of them until I describe the gardens in and about the city.
Culinary vegetables are grown here in abundance, including a great part of those known in Europe, as well as those peculiar to warm climates. The _yuca_, casava, merits particular attention, on account of its prolific produce, delicate taste, and nutritious qualities; it grows to about five feet high; its leaves are divided into seven finger-like lobes of a beautiful green, and each plant will generally yield about eight roots of the size of large carrots, of a white colour, under a kind of rough barky husk. In a raw state its taste is somewhat similar to that of the chesnut, and of a very agreeable flavour when roasted or boiled; the young buds and leaves are also cooked, and are as good as spinage. It is propagated by planting the stalks or stems of the old crop, cutting them close to the ground after about four inches are buried in the mould, which must be light and rather sandy. Two species are known; the crop of the one arrives at full growth in three months, but this is not considered of so good a quality, nor is it so productive as the other, which is six months before it arrives at a state of perfection. They are distinguished by the yellowish colour of the latter, and the perfectly white colour of the former. The disadvantage attending these roots, is, that they cannot be kept above four or five days before they become very black, when they are considered unfit for use. Starch is made from them in considerable quantities, by the usual method of bruising, and subjecting them to fermentation, in order to separate the farina. The mandioc, a variety of this genus, is unknown on the western side of the Continent: thus all danger of injury from its poisonous qualities is precluded.
Several varieties of the potatoe are cultivated and yield very abundant crops. They appear to have been known in this part of the New World before it was visited by the Spaniards, and not to have been confined to Chile, their native country. I found this probability on their having a proper name in the Quichua language, whilst those plants that have been brought into the country retain among the Indians their Spanish names alone.