. The book of the garden. Gardening. PROPAGATION BY GRAFTING. 333. culent plants; and some Continental gi-owers employ it in the propagation of roses and ca- mellias. For the latter purpose it is of consider- able importance, as each individual bud is made to form a plant, the scion being cut so that only one bud is attached to each. Crown-grafting is merely a variety of cleft-graft- ing, and is sometimes called rind-grafting. It is practised upon old trees, either for their total re- newaljOruponlargeamputatedbranches, to renew by degrees. It is, upon the whole, abetter mode than cleft-grafti
. The book of the garden. Gardening. PROPAGATION BY GRAFTING. 333. culent plants; and some Continental gi-owers employ it in the propagation of roses and ca- mellias. For the latter purpose it is of consider- able importance, as each individual bud is made to form a plant, the scion being cut so that only one bud is attached to each. Crown-grafting is merely a variety of cleft-graft- ing, and is sometimes called rind-grafting. It is practised upon old trees, either for their total re- newaljOruponlargeamputatedbranches, to renew by degrees. It is, upon the whole, abetter mode than cleft-grafting, because the stock, if old, is not subjectedtothe chance of being split, the scions in this case being placed I between the bark and the wood. Fig. 105 will illus- trate the process. It is performed later in the season than cleft-grafting —that is, from the end of March to the end of April —because then the bark separates more freely from the wood than at an earlier period. In rind or crown grafting, great care must be taken that the bark of the stock be not bruised during the process of open- ing the bark for the recep- tion of the scion, and for this purpose a proper spatula or grafting-knife Some use a piece of hard wood, fashioned in form of a scion, and others one of bone or ivory; the use of these is to se- parate the bark from the wood without injuring the former. The scion is prepared without a tongue, and is placed in the stock so that its wood may be in contact vdth the alburnum of the stock. Sometimes it is cut with a sort of shoulder at the top of the cut, that the graft may rest on the wood of the stock, and in this case it is called shoulder-grafting. Fig. 106. The graft being prepared in either way, the bark of the stock is opened to the extent of 2 inches, and the scion is made to pass down between the wood and the bark. If the bark of the stock is hard and dry, and does not yield readily, it may be scored or cut perpendicularly downward, to en- able the
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