139 



lias been perfectly fitted to the stock, 

 it is tied with a strand of matting, 

 as shown in the figure, and after- 

 wards covered with grafting-wax, or 

 grafting- clay, the modes of making 



FIG. 20.— GRAFTIXG THE CACTI. 



which will be given hereinafter. 

 There are different variations of 

 this mode of grafting. Sometimes 

 the dovetail notch is omitted, and 

 at others a tongue is formed in the 

 scion and a slit made in the stock, 

 into which it is inserted ; this 



is, of course, quite different, and the 

 latter is put on at one side, in order 

 that its inner bark may be closely 

 united with that of the ^tock. This 

 is the common mode of grafting 

 fruit-trees in the nurseries. 



Slit, or cleft-grafting, is per- 

 formed by first cutting over the 

 stock, and next making a slit or 

 cleft in it ; then paring the scion on 



FIG. 21.— GRAFTING THE P.EONY. 



tongue serving the purpose of the 

 dovetail notch, viz., to keep the 

 scion in its place. When the stock 

 is of so much larger diameter than 

 the scion, the appearance of this graft 



FIG. 22.— GRAFTING THE P.3E0NY. 



both sides, so as to form a wedge, 

 narrower at the inner edge ; and 

 after inserting it in the cleft, tying 

 it and claying it as before. This 

 mode is well adapted for grafting 

 one succulent plant on another ; as, 

 for example, in the Cacti tribe, 

 grafting an Epiphj-llum on a Pere- 

 skia, as shown in fg. 20, or for 

 ligneous Pseonies on the tubers of 

 herbaceous ones, as shown in Jigs. 

 2 1 and 22. In fg. 21, a is the stock 

 already notched ; and, in fg. 22, 



