. The theory of horticulture. d in the manner last described, ex-posed to all the accidents which those first mentionedcan have encountered, have germinated so well, thatwe can scarcely say that the failure has been greaterthan if they had been collected in the south of have no doubt that the general badness of the 184 APPLICATION OF PRINCIPLES. seeds from Brazil, from the Indian Archipelago, andfrom other intertropical countries, is .almost alwaysto be ascribed to the seeds having been originally in-sufficiently dried, and then enclosed in tightly packedboxes, whence the superfluous
. The theory of horticulture. d in the manner last described, ex-posed to all the accidents which those first mentionedcan have encountered, have germinated so well, thatwe can scarcely say that the failure has been greaterthan if they had been collected in the south of have no doubt that the general badness of the 184 APPLICATION OF PRINCIPLES. seeds from Brazil, from the Indian Archipelago, andfrom other intertropical countries, is .almost alwaysto be ascribed to the seeds having been originally in-sufficiently dried, and then enclosed in tightly packedboxes, whence the superfluous moisture had no meansof escape. For seeds containing oily matter, which are pecu-liarly liable to destruction (by their oil becomingrancid ?), ramming in dry earth has been found advan-tageous ; as in the case of the Mango. CHAPTER VIII. OF PROPAGATION BY EYES AND KNAUR& The power of propagating plants by any othermeans than that of seeds depends entirely upon thepresence of leaf-buds {fig. 16), or. as they are technical-. OF PROPAGATION BY EYES AND KXAURS. 185 ly called, eyes (52),which are in reality rudimentarybranches in close connexion with the stem. All stemsare furnished with such buds, which, although heldtogether by a common system, have a power of inde-pendent existence under fitting circumstances; and,when called into growth, uniformly produce newparts, of exactly the same nature, with respect to eachother, as that from which they originally sprang. Under ordinary circumstances, an eye remains fix-ed upon the stem that generates it. There it grows,sending woody matter downwards over the alburnum,and a new branch upwards, clothed with leaves, andperhaps flowers: but it occasionally happens thateyes separate spontaneously from their mother stem,and when they fall upon the ground they emit rootsand become new plants (p. 29. fig. 3). This happensin several kinds of Lily, and in other genera. Man has taken advantage of this property, and hasdiscovered that the eyes of man
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