WEED MIGRATION 763 



in 1899. It is reported as quite common now in many counties of 

 the state, being generally distributed with clover seed. It has also 

 been reported in Ames, 1890 (F. A. Sirrine and L.. H. Pammel) ; 

 1894 (G. W. Carver) ; Hartley, 1905 (W. B. Elliott) ; Audubon, 

 1906 (A. H. Edwards) ; Ames, 1909 (M. Clapper) ; Fayette (Bruce 

 Fink) ; Maynard (A. F. Crawford) . 



PHYTOLACCACEAE, POKEWEED FAMILY. 



Pokeweed {Phytolacca decandra L.). 



Grinnell, 1889 (A. S. Hitchcock) ; Muscatine, 1891 (F. Reppert) ; 

 Ames, 1894 (L. H. Pammel). A waif; not established. 



POLYGONACEAE, BUCKWHEAT FAMILY. 

 Patience Dock {Bumex patientia L.). 

 Boone (G. W. Carver): Established. Escaped from cultivation. 



Prince's Feather {Polygonum orientale L.). 



Muscatine, 1890 (F. Reppert); Onawa, 1894; Clinton, 1897 

 (Pammel) . 



PORTULACACEAE, PURSLANE FAMILY. 



Purslane {Portvlaca oleraced). 



Cultivated in Massachusetts in 1672 and since has spread to 

 every part of the United States," appearing like an indigenous 

 plant. It is likewise common in Germany, Holland, England, 

 France and other European couiitries and in Australia. A cos- 

 mopolitan weed. - ' 



