122 



PROPAGATION BY CUTTINGS 



simple cuttings will start much more easily if a part of the 

 branch from which it is taken is removed with it. This 

 piece is known as a " heel " from which the cutting takes 



Orange Lemon 



FIG. 57. Cuttings as Sometimes Used on the Citrus Fruits. 



its name. (See b, Fig. 55.) The number of cuttings that 

 can be made by this method is much less than the simple 

 way as each branch can produce but one. The grape 

 and the olive are sometimes grown in this way when the 

 other methods fail. The doucine stock which is used for a 



