Chapin: Heredity in Chlmeras 



537 



A GERANIUM CHIMERA 



Variegated geranium (Pelargonium zonale), the product of artificial cross-pollination, 

 fis father had white-edged leaves like that shown in the lower left-hand corner, 

 its mother had normal green leaves. The same cross produced plants which were 

 apparently pure i^^reen and others which were apparently pure white, in addition 

 to variegated plants of the type here shown. One of the upper branches of this 

 geranium, it will be noted, is composed entirely of white tissue and so has only 

 white leaves, while the lower branch is composed of green tissue which is partly 

 enclosed on the left side with a thin layer of white cells. (Fig. 11 ) 



