BULLETINS OF CORNELL UNlVERSm EXPERI- 

 MENT STATION. 



THE CULTIVATED NATIVE PLUMS AND CHEKRIES. 



* T. THE PLUMS. 



§ 1. Classification of the Cultivated Native Plums. 



A. The Americana Group. 



B. The Wild Goose Group. 



C. The Miner Group. 



D. The Chickasaw Group. 



E. The Marianna Group. 

 P. The Beach Plum. 



G. Prunus subcordata. 



H. Hybrids. 



I. Unclassified varieties. 



§ 2. Cultivation of the Native Plums. 



1. Impotent varieties. Planting. 



2. Propagation. 



3. Varieties. ' ^^ 



4. Insects and Diseases. 



Since the introduction of the Wild Goose plum, some forty years ago, 

 there has been a steadily growing interest in the amelioration of our native 

 plums. The native species possess certain advantages over the common 

 plums of the Prunus domestica type,* and they are so widely distributed 

 and are naturally so valuable that they have been easily brought into cul- 

 tivation under a great number of forms. Over 150 varieties have been 

 named and more or less disseminated, and the following pages record 140. 

 There has been no attempt, so far as I know, to make a comprehensive 

 study of these fruits, and as a consequence our knowledge of them is 

 vague and confused. In fact, the native plums constitute probably the 



* The common plums and the prunes belong to the European species Prunus domestica. In the follow- 

 ing pages these fruits are often referred to as the domestica plums. 



