LEAF VARIATIONS IN 

 A HYBRID 



This very striking picture illustrates 

 the range of variation that may be 

 shown in a crossbred plant. The solid 

 leaf at the left resembles the California 

 dewberry; the leaf at the right shows 

 the characteristics of the Oregon ever- 

 green blackberry these two being the 

 parental forms. The segregation of 

 ancestral hereditary factors is strikingly 

 shown in these hybrid blackberries. 



