BOOK XVII. x. 59-xi. 62
there are some trees that are not grown in any other way, for instance chestnuts and walnuts, with the exception, that is, of those intended for felling; but also some grown in other ways are grown from seed as well, though a different kind of seed—for instance vines and apples and pears—as with these a pip serves as a seed, and not the actual fruit, as in the case of the trees mentioned above. Also medlars can be grown from seed. All of these trees are slow in coming on, and liable to degenerate so as to have to be restored by grafting; and sometimes this happens even with chestnuts.
XI.Some trees on the other hand have the property of not degenerating at all in whatever way they are propagated, for instance cypresses, the palm and laurels—for the laurel also can be propagated in a variety of ways. XV. 127 i.We have stated the various kinds of laurel. Of these the Augusta, the berry laurel and the laurustinus are propagated in a similar manner: their berries are picked in January, after they have been dried by a spell of north-east wind, and are spread out separately, so as not to ferment by lying in a heap; afterwards some people treat them with dung in preparation for sowing and soak them with urine, but others put them in running water in a wicker basket, and stamp on them till the skin is washed away, which otherwise is attacked by stagnant moisture and does not allow them to bear. They are planted in a freshly dug trench a hand's breadth deep, about twenty in a cluster; this is done in March. These laurels can also be propagated by layering, but the laurel worn in triumphal processions can only be grown from a cutting. Myrtles of all varieties are grown from berries in Campania, but at Rome
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