UNITED STATES DEPARTMENT OF AGRICULTURE 



BULLETIN No. 172 



Contribution from the Bureau of Plant Industry 

 WM. A. TAYLOR, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



March 13, 1915 



~i-n 



= 3- 



THE 



VARIETIES OF PLUMS DERIVED FROM 



NATIVE AMERICAN SPECIES 



By 



W. F. WIGHT, Botanist, Office of Horticultural and 

 Pomological Investigations 



CONTENTS 



Introduction 



Geographical Origin of Varieties 

 Parentage of Varieties 

 Varieties Classified by Species 



Classified Varieties . 



Hybrid Varieties . . 



Unclassified Varieties 



Page 

 1 

 2 

 3 

 4 

 4 

 6 

 8 



Page 

 Origin and Species of Native Varieties of ' 



Plums and of Hybrids 8 



Explanation 8 



Alphabetical List of Native Varieties 

 and Hybrids 10 



