THE BARBERRY IN IOWA 



227 



wild barberry. The wild plants are some 400 feet from the original 

 hedge. A few are only twenty feet away. There is no question 

 that the plants on the hill were scattered by birds. Professor Paar- 



PiG. 76.— Cxeneral map of LeClaire and the Johnson place. (C. M. King.) 



man says that the Cedar wax wing is the important scatterer of the 

 seeds, and in Iowa this occurs from February to April. We next 

 visited the timber where the wild plants are scattered over an area 



