96 



Studies in Variegation. I. 



The white-skinned form alone has flowered under observation. It 

 failed to set with its own pollen. 



The text-figures show in section through the leaves the distribution 

 of chlorophyll in the leaves of the two forms. 





Green skin. White core. 



White skin. Green core. 



Euonymus japonicus latifolius var. vai'iegata. 



Coprosma Baiieri. 



The white-skinned var. variegata of this New Zealand plant is well 

 known. In 1877 J. Barbier figured in Rev. Hort. Belg. ill. p. 32 the 

 reversed or green-skinned form which had been lately brought out by 

 Messrs B. S. Williams. To it he gave the name G. Stocki. It is also 

 sometimes called var. picturata. A few years ago Sir William Lawrence 

 presented to this Institution a cutting of this identical variety which 

 had arisen at Burford as a sport from the ordinary variegata. The two 

 forms are shown in Figs. 6 and 7. The distribution of the green in the 

 green-skinned form is approximately the converse of the distribution 

 of the white in variegata. Its stems however are white. The green- 

 skinned plant has, with us, produced some wholly green shoots. 



