120 IOWA ACADEMY OF SCIENCES. 



Hdiantlius annuus L. Winneshiek, Allamakee, Clayton, and 

 Jackson Cos. Waste places, frequent. 



H. petlolaris Nutt. Dubuque Co. Along the railroad, one 

 specimen. 



H. occidentalis Ridd. Winneshiek Co. 



H. grosse-serrafALS Mart. Winneshiek Co. Rich soil, common. 



E. maximiliani Schrad. Dubuque Co. A few along railroad. 



H. tuberosus L. Winneshiek Co. Woods, frequent. 



Coreopsis palmata Nutt. Winneshiek, Allamakee, and Clay- 

 ton Cos. Prairies, common. 



Bidens frondosis L. Winneshiek, Clayton, Dubuque, and 

 Clinton Cos. Wet grounds, common. 



B. connata Muhl. Winneshiek Co. Wet grounds, common. 



B. cernua L. Winneshiek Co. Wet grounds, common. 

 Helenium antumnale L. Winneshiek, Allamakee, Clinton, 



and Scott Cos. Alluvial soil, frequent. 



Anthemis cotula DC. Winneshiek, Allamakee, Clayton, 

 Dubuque, Jackson, Clinton, and Scott Cos. Waste places, 

 common. 



Achillea millefolium L. Winneshiek and Dubuque Cos. 

 Meadows and open woods, common. 



Chrysanthemum leitcanthemum L. Allamakee and Dubuque 

 Cos. Along railroad and in open woods, infrequent . 



Tanacetum vulgare L. Winneshiek and Allamakee Cos. 

 Waysides and waste places, frequent. 



Artemisia biennis Willd. Winneshiek, Dubuque, and Jack- 

 son Cos. Waste places, frequent. 



A. ludoviciana Nutt. Winneshiek, Allamakee, and Dubuque 

 Cos.. 



A. caudata Mx. Winneshiek Co. 



Senecio aure'is'L., var. balsamitre T. & G. Winneshiek, Alla- 

 makee, and Scott Cos. Woods, frequent. 



Cacatia suaveoleus L. Winneshiek Co. Woods, infrequent. 



C. reniformis Muhl. Winneshiek and Allamakee Cos. Woods, 

 frequent. 



C. tvberosa Nutt. Allamakee Co. Wet prairies, frequent. 



Erechtites hierocifoHa Raf. Winneshiek Co. Open places, 

 frequent. 



Arctium lajypa L. Winneshiek, Clayton and Dubuque Cos. 

 Fields and waste places, frequent. 



Cnicus lanceolatus Hotfm. Winneshiek, Allamakee, Clayton, 

 Dubuque and Clinton Cos. Fields and open woods, frequent. 



