THE GREEN-HOUSE. 



193 



Some of the latest-planted cuttings, as tliose of 

 many of the Proteas, Bdnksias, and other hard- 

 wooded Australasian plants, as well as Camellias, 

 will not be fit to put off the same season. These 

 may have their glasses taken off (as leathery-leaved 

 plants require them much less than those with tender 

 foliage), and be set in an airy, rather shady part of 

 the green-house, not exposed to view so as to injure 

 the general effect. In the succeeding February they 

 may be placed on a little heat, when they will push 

 freely. In the nurseries, cuttings of Camellias and 

 of the Citrus tribe are generally not taken off till the 

 shoots have finished their growth, the leaves attained 

 their full size, and the bark at the lower end of the 

 shoot begun to get brown. They are then planted 

 in broad pots of loam, and kept without being covered 

 with glasses in an airy part of the green-house all 

 winter, and in February put on heat. When grow- 

 ing shoots are used, they are planted in sand covered 

 with a bell, and immediately put on heat : in this 

 way a number of them strike root ; but if young shoots 

 are planted in loam, whether put in heat or not, and 

 whether with or without a bell-glass, they generally 

 damp off. But on the Camellia and Citrus we have 

 already treated. 



Subsect. 4. Propagation of Green-house Plants hy 

 haying, Inarching, Budding, and Grafting, 



A few green-house plants are propagated by laying ; 

 and this mode also is sometimes adopted for such as 



o 



