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 
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 
Origin and Species of Native Varieties of 
Plums and of Hybrids 8 
Explanation 8 
Alphabetical List of Native Varieties 
and Hybrids 10 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1915 
