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evidence to render the occurrence of hybridisation in this par- 
ticular case at all probable. We can only attribute it to a 
difference in the organising force manifested in certain parts 
of the plant as contrasted with others. 
Of a similar character are the observations made by practical 
gardeners as to the difficulty, and in some cases impossibility, 
of perpetuating a variegated condition of the leaves by dividing 
the root ; plants so produced having green leaves. A French 
nurseryman, M. Lemoine, notes this in the case of variegated 
pelargoniums, and in certain forms of Symphytum and Phlox , 
and his experience tallies with that of English cultivators. 
Again, in the common practice of budding roses, if the bud be 
taken from a long rampant 64 gross ” shoot, with a great ten- 
dency to form leaves and little tendency to produce flowers, the 
bud, transferred to its new home, will reproduce the undesirable 
characters of the parent shoot : hence the care requisite in 
budding to take buds from short-jointed flower-bearing shoots. 
