ON THE VARIEGATION OF PLANTS. 371 



pttrple stripes in the seed-leaves of several of them ; and in 

 the autumn the leaves of many were variegated. I did not 

 however obtain a single plant, which promised to produce, 

 er has subsequently afforded, either coloured fruit, or co- 

 loured leaves, free from variegation. 



When, on the contrary, I have introduced the farina of Farina of black 

 a black, or purple grape into the blossom of a white one, render white 

 none of the plants I obtained have ever been variegated ; ones variegated. 

 and the colour of the leaves and fruit, which these in the 

 first year afforded, indicated with certainty the colour of all 

 the produce of such varieties, in whatever soil cuttings 

 taken from them were subsequently planted. 



But in the variegated vines the result has been wholly dif- In variegated 

 ferent; and though the leaves and fruit first produced by JjgJ^J® effeC * 

 some of them contained more tingeing matter than any of 

 the coloured kinds, they subsequently produced, even on 

 the same tree, some bunches almost entirely black, others 

 perfectly white, others lead-coloured with stripes of white, 

 and others white with minute black stripes ; and grapes of 

 all the preceding colours are very frequently seen on the 

 same cluster. The leaves are also subject to the same vari- 

 ations, and the colours in them are in some instances con- 

 fined to the trpper, in others to the under surface, and 

 sometimes extend quite through ; and both the leaves and 

 fruit of some of the branches have become permanently 

 colourless. 



It appears therefore obvious, that the tingeing matter of Their colouring 

 variegated grapes, though probably not essentially different matter com- 

 from that of others, is differently combined, and united toculiarway. 

 the plant ; and as the variegated grape afforded offspring si- 

 milar to itself, and none similar to other vines, which per- 

 manently afford coloured fruit, it may be confidently infer- 

 red, that the nature of the union between the tingeing mat- 

 ter and the plants is very essentially different. 



All the variegated plants, that I obtained from the farina The variegated 

 of the Aleppo vine, are not only perfectly free from anTvLoTous, 

 disease and debility of every kind, but many of them pos- and therefore 

 sess a more than ordinary degree of hardiness and vigour : debdkvT 8 ^ 

 and two of them appear much more capable of affording 

 -mature fruity in the climate of Englaad ; than any now 

 2 B | cultivated. 



