SOME EXPERIMENTS OF LUTHER BUR BANK. 221 



9#* 



Original Wild Stoneless Plum at the Top and 14 of its Seedlings when crossed with 



the French Prune below, about 3^ Size. 



inside the capsule. All seedlings always vary more or less. With the 

 same parent, one fruit may be two and one half or more times the 

 diameter of the other, of a different color, flavor or differing in almost 

 all respects. " There is no prepotency of male or female as such. 

 Prepotency depends wholly on heredity. We can not rely on the stone- 

 less types being prepotent, but a certain number of trees producing 

 stoneless fruit usually come from crossing them with those having 

 stones. The prepotency to produce a stone, or a half stone, having been 

 more thoroughly fixed by ages of stone-producing trees, will perhaps 

 be about ninety-nine times out of one hundred. But other things 

 being equal, there is absolutely no balance in favor of either sex. This 

 may be set down as fixed." 



With plum-almond crosses there is every kind of variation in the 

 flowers. Some have all stamens, some have many petals or none, some 

 never open, and some have pistils only. 



