27 



are several plants which may be propagated by 

 the leaves only, such as many of the Messem- 

 bryanthemums, Aloes, and other succulents ; 

 also some woody plants, as the Xylophylla; 

 the leaf of which when put in as a cutting, will 

 actually put forth branches, and become itself 

 the stem : though I believe they are never 

 known to produce them while on the parent 

 plan. — Bryophyllum will, from the crenulations 

 of its leaf when detached from the parent plant 5 

 produce both roots and stems ; each of which 

 becomes a distinct plant ; 'so that one leaf may 

 produce six, eight, or ten plants : and that 

 without any particular care more than to be 

 laid on the surface of any pot of mould in the 

 hot house, in the position in which it naturally 

 grows. — There are several others that will root 

 freely, by the leaf, but require to have the bud 

 at their base detached along with them, other- 

 wise they will never become plants ; though 

 they may fill their pots with roots : instances of 

 which I have frequently witnessed : as in Ca- 

 meftia, Hoya, &c. &c. 



There are some plants which are only to be 

 enereased by parting the crown of the roots 

 with a knife, such as Strelitzia for instance, in 



