38 REMARKS UPON THE PROPAGATION OF PLANTS. 



similar exotic genera are often propagated by this means on stocks 

 raise from pips. When it is intended to inarch any particular kind, 

 it must be observed that the stock to be grafted on, and the plant 

 from which the graft is procured, must stand near enough to allow 

 he branch intended to be inarched, as it grows upon the parent tree, 

 to approach and join readily to a convenient part of the stock, forming 

 a sort of arch ; for the graft is not to be separated till some months 

 after performing the operation, nor is the head of the stock to be cut 

 off till that time. Some genera, as Camellia, Magnolia, &c, are 

 often inarched upon the commoner kinds, or those species that will 

 strike root readily from cuttings. From April to June is the most 

 proper time for performing this mode of propagation. Two or three 

 kinds are sometimes inarched on the same graft, which makes a 

 pleasing and varied appearance. 



6. Root Divisions. — Cultivators at the present day often resort to 

 this mode in increasing those exotics that will not seed or propagate 

 readily by other means; but this way cannot be acted on extensively, 

 unless the propagator has the acquisition of a conservatory to supply 

 his wants ; and then care must be taken not to approach too near, or 

 to injure the parent plant. As large pieces as can be spared must 

 be procured and planted in the same kind of soil as the whole plants, 

 in pots proportioned to the size of the roots, with their points above 

 the surface, when they must be plunged in a prepared hotbed, not 

 too hot, nor containing much rank steam. A little air must be allowed 

 in the middle of the day, and shade when the sun is powerful. After 

 they have taken fresh root, and the tops begin to produce leaves, they 

 must be removed and hardened by degrees to the respective depart- 

 ments. Many species of the ornamental and interesting genus Acacia 

 car, only be readily increased by this means, as A. decipiens, Sophora 

 falcata, &c. 



7. Leaves. — Some exotics, as Hoya carnosa, Gloxinias, Gesnerias, 

 &c, ropagate freely by this mode, and often easier than any other 

 way. In the spring months let the leaves of the kinds intended to 

 increase be taken off close to the stem, and inserted into the same 

 kind of soil in pots. The whole of the petiole (leaf-stalk) and about 

 half an inch of the leaf should be covered ; let it lie in a slanting 

 direction, and cover the pot with a bell glass, laying it into a slight 

 hotbed ; and if regular watering be given and the steam out of the 



