THE WHITE BLACKBERRY 



of the Shasta Daisy and of a host of other new 

 forms of plant life that will find record in succes- 

 sive chapters of the present work. 



But while I would thus guard the reader 

 against the mistake, which some enthusiasts have 

 made, of assuming that the Mendelian formula 

 about which so much is heard nowadays must 

 revolutionize the methods and results of the plant 

 breeder, I would be foremost to admit that the 

 remarkable work of Mendel himself, together 

 with the work of his numerous disciples of the 

 past ten years, has supplied us at once with 

 several convenient new terms and with a tangible 

 explanation or interpretation of a good many facts 

 of plant and animal heredity that heretofore have 

 been but vaguely explicable, even though clearly 

 known and demonstrated as facts. 



The case of the white blackberry with which 

 we are at the moment concerned, is a very good 

 illustration in point. 



My experiments in the development of that 

 berry, might be interpreted in the older terminol- 

 ogy something like this: The big, luscious, black 

 Lawton blackberry proved prepotent when crossed 

 with the small brownish "Crystal White," and the 

 offspring were therefore all large luscious black 

 berries closely similar to the prepotent parent. 

 But the qualities of the other parent were latent in 



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