The Native Dwarf Cherries. 265 



This fungus attacks the fruits chiefly, causing them to swell into 

 great irregular hollow bodies, as seen in the illustration. We do 

 not know as there is a specific for this disease, but it is not likely 

 to be generally serious. 



SUMMARY. 



We have found that the dwarf cherries now recommended or 

 sparingly grown for fruit, are of three types, — the sand cherry 

 of the northeastern States (^Primus pumila) ; the western dwarf 

 cherry of the trans- Mississippi region {Prumis Besscyi) ; and 

 the Utah hybrid cherry [Priimcs Besseyi X P- Watsoni). 



The Sand Cherry grows naturally along the great lakes to the 

 I^ake of the Woods, and along rivers and lakes in the northeastern 

 states. It is in cultivation for ornament, but there are no im- 

 proved fruit-bearing forms. The fruit is generally about a half 

 inch in diameter, black or nearly so, and variable in quality. It 

 gives evidence, in its native state, of being worthy of improve- 

 ment as a fruit plant. 



The Western Dwarf Cherry grows upon the plains beyond the 

 Mississippi, and extends into the mountains of Colorado and Utah. 

 It is the species to which greatest attention has been given as a 

 fruit-bearing plant, and it certainly possesses great promise when 

 further improved. The form known as Improved Dwarf Rocky 

 Mountain Cherry is worthy of trial. 



The Utah Hybrid Cherry appears to be a hybrid of the West- 

 ern Dwarf Cherry, and the Sand Plum of the plains. The plant 

 is hardy and productive and the cherries are handsome, but the 

 fruit is of too poor quality, at least as grown here, to be recom- 

 mended. 



It is the intention of this Station to use some of these bush 

 cherries, along with other fruits, in an attempt towards the re- 

 clamation of certain waste lands in the State. 



L. H. BAILEY. 



