IOWA ACADEMY OF SCIENCES. 189 



Artemisia ludovk-iana Nutt. Union, Adams, Montgomery, 

 Pottawattamie, Ringgold, Taylor, Page, and Fremont counties. 

 Waysides and fields; common. 



A. annua L. Decatur county. Waste places; common in 

 one locality. 



Cacalia atriplici folia L. Union, Pottawattamie, Ringgold, 

 Taylor, and Fremont counties. Prairies; frequent. 



G. tuberosa Nutt. Union, Adams, Pottawattamie, Ringgold, 

 and Taylor counties. Prairies; common. 



Arctium lappa L. Clarke, Adams, Pottawattamie, Ringgold, 

 Taylor, and Fremont counties. Waste places; common. 



Hieracium lonrjipilum Torr. Taylor county. Prairies; fre- 

 quent. 



H. scabrum Mx. Ringgold county. Woods; frequent. 



Prenanthes aspera Mx. Ringgold county. Waysides; fre- 

 quent. 



Lygodesmia juncea Don. Fremont county. Loess hills; com- 

 mon; this species is spreading eastward and is becoming fre- 

 quent in the cultivated fields. 



Taraxacum officinale Neber. Clarke, Union, Adams, Mont- 

 gomery, and Ringgold counties. Fields and waste places; 

 common. 



Lactuca iniegrifolia Bigel. Decatur, Ringgold, and Taylor 

 counties. Fields and waysides; frequent. 



L. scariola L. Decatur, Taylor, Page, and Fremont counties. 

 Waste places; frequent. 



L. canadensis L. Ringgold county. Waysides; frequent. 



L. floridana Gaertn Johnson, Van Buren, and Decatur 

 counties. Fields; frequent. 



L. pulcliella Bigel. Montgomery, Pottawattamie, and Fre- 

 mont counties. Waste places ; common. 



LOBELIACE.^. 



Lobelia syphilitica L. Taylor, Page, and Fremont counties. 

 Moist places; frequent. 



L. spicata Lam. Union and Adams counties. Fields; 

 common. 



Campanulace.e. 



Specularia perfoliata A. DC. Union county. Rare. 

 Campanula americana L Taylor, Page, and Fremont 

 counties. Rich woods; common. 



