160 FLOWER-GARDENlNa. 



356. It serves to maintain the vitality of a scion until it can 

 form an adhesion with its stock ; and must be considered the 

 most certain mode of grafting. 



357. It is probable that every species of flowering plant, 

 without exception, may be multiplied by grafting. 



358. Nevertheless, there are many species and even tribes 

 that never have been grafted. 



359. It has been found that in the Vine and the Walnut 

 this difficulty can be overcome by attention to their peculiar 

 constitutions ; and it is probable that the same attention will 

 remove supposed difficulties in the case of other species. 



XV. Transplantation. 



360. Transplantation consists in removing a plant from the 

 soil in which it is growing to some other soil. 



361. If in the operation the plant is torpid, and its spongioles 

 uninjured, the removal will not be productive of any interrup- 

 tion to the previous rate of growth. y* 



362. And if it is growing, or evergreen, and the spongioles 

 are uninjured, the removal will produce no further injury than 

 may arise from the temporary suspension of the action of the 

 spongioles, and the non-cessation of perspiration during the 

 operation. 



363. So that transplantations may take place at all seasons 

 of the year, and under all circumstances, provided the spon- 

 gioles are uninjured. 



364. This applies to the largest trees as well as to the small- 

 est herbs. 



365. But as it is impossible to take plants out of the earth 

 without destroying or injuring the spongioles, the evil conse- 

 quence of such accidents must be remedied by the hindrance 

 of evaporation. 



366. Transplantation should therefore take place only when 

 plants are torpid, and when their respiratory organs (leaves) 



