204 LUTHER BURBANK 



appreciated there because of its resemblance to 

 the apricot. Besides the varieties that have been 

 introduced, I have some thirty other selected 

 varieties that have been given temporary names, 

 for further testing. Some of these will doubtless 

 be introduced if, as expected, they prove of value. 

 Hundreds of other seedlings are being tested 

 but have not developed sufficiently to give a very 

 definite idea of their qualities. 



HYBRIDIZING THE PLUMCOT 



Now that the plumcot race has been thor- 

 oughly established, it is necessary to make further 

 crosses. 



The obvious way to obtain improved varieties 

 is to cross the best seedlings of those already 

 produced. This is being done every year. Seeds 

 of all of the plumcot s grown on my place in 1912 

 were saved and planted; possibly two thousand 

 of these seedlings being grown. 



One of my named varieties that has not been 

 introduced is perhaps one of the most prolific 

 fruit trees ever produced. The seeds from this 

 are being saved separately. It is very probable 

 that the seedlings grown from this variety will be 

 remarkable producers. 



By crossing some of the plumcots with the 

 Prunus Pissardi plum, some purple-leaved plum- 



