PKOPAGATIOH. 



16 



times over the top of the scion and under the pot containing the 

 stock, or by placing three stakes around it in such a way that, 

 when tied together at the top, they will hold it firmly in position. 

 Another method is that of cutting the top of the stock in the form 

 of a round wedge, and then scooping a hole out in the centre of 

 the scion large enough to fit this wedge, holding them together in 

 the manner above mentioned. 



To graft a spherical stem on three columnar ones, the latter 

 must first be established in one pot and, when ready for grafting, 

 cut at the top into rounded wedges, three holes to correspond being 

 cut into the scion. When fixed, the top should be securely fastened 

 by tying it to the pot, or by means of stakes. For this last operation, 



Fig. 4.- Graft of Mamillarla 

 recurva OH Cereui 

 nycticalus. 



5. Graft of Opuatia 

 decipiens on O. 



Ficus-indica. 



a little patience and care are necessary to make the stocks and 

 scions fit properly. In the accompanying illustrations, we have 

 a small Mamillaria stem grafted on to the apex of the tall 

 quadrangular-stemmed Cereus (Fig. 4), and a cylindrical-stemmed 

 Opuntia worked on a branch of the flat, battledore-like Indian 

 Fig (Fig. 5). 



