Mr. Knight on the Variegation of Plants. 271 



wholly green ; and I have never seen any plants, the leaves of 

 which are wholly white or yellow, that continued to live beyond 

 a single season. A variegated plant of the raspberry, which 

 sprang from seed in my garden, became wholly white in the 

 third year; but it perished in the succeeding winter, and I should 

 be disposed to conclude that plants whose leaves are entirely 

 white or yellow, cannot long survive ; but that Du Ilamel* has 

 described a variety of the peach tree, of which he says, " son 

 bois, ses feuilles, ses fleurs, et son fruit, tant ext6rieurement qu'in- 

 terieurement, sont tout a fait blancs." This variety is at present, 

 I believe, .wholly unknown to our gardeners ; and I suspect that 

 it was always a debilitated plant, and that it in consequence ex- 

 ists no more. I am, &c. 



Thomas Andrew Knight. 



* In his Treatise on Trees.— Article Peach Tree. 



XX. Charac- 



