13 



THE ART OF 



cannot be conveniently employed, they are placed under the soil 

 with the same object. This kind of ligature requires a proper 

 medium of dryness and moisture. If too dry, the leaf of the 

 reed-mace or of the bur -reed will not have sufficient resisting 

 power, and will break ; if too moist, it will cause the graft to 

 rot, in addition to being just as brittle as in the other case. 



Eoed-^Iace. Bur-Reed. 



The leaf is generally broad enough to be divided lengthways, 

 and fastens better when it is put on edgeways, and not laid 

 flat, and when it is slightly twisted in winding it round the 

 graft. "With the exception of those modes of grafting which 

 require the woody tissues of the stock to be cleft, and for 

 which the leaf of the reed-mace or the bur-reed is not 



