INTERESTING FAILURES 171 



The particular bush in question had only 

 pistillate flowers, and as it grew in isolation, 

 miles from any similar plant, its flowers were 

 rarely fertilized and ordinarily bore no fruit. At 

 most it occasionally developed single drupelets, 

 a result possibly of partial fertilization from 

 grains of pollen accidentally brought from a 

 distance by wind or insect. 



The isolation of the plant, and the fact that 

 it bore unisexual flowers, seemed to offer a 

 favorable opportunity for some experiments. 



Upon this plant I applied the pollen of 

 various species of plants of the same family. 

 The list is a striking one, for it included the 

 apple, the mountain ash, the hawthorn, the 

 quince, the pear, and various kinds of roses, but 

 no blackberry or raspberry. 



I worked at these hybridizations attentively 

 during the blooming season of the dewberry in 

 the summer of 1886. 



The pistils thus fertilized developed an abun- 

 dant crop of fruit, and in the ensuing season I 

 raised from these berries between five and six 

 thousand seedlings. 



Xever on earth, perhaps, was there seen a 

 more widely varying lot of seedlings that were 

 the immediate offspring of a single plant. The 

 hybrids took every possible form that could be 



