IOWA ACADEMY OF SCIENCES. 149 



A. novce-anglioB L. Decatur and Johnson Cos. Woods, fre- 

 quent. 



A. prenanthoides Muhl. Johnson Co. Woods, frequent. 



A. salicifolius Ait. Decatur, Henry, and Johnson Cos. Cop- 

 ses, open places, frequent. 



.1 azureus Lindl. Decatur, Appanoose, and Johnson Cos. 

 Woods and prairies, common. 



A cordifolius L. Decatur and Johnson Cos. Woods, infre- 

 quent. 



A. sagittifolius Willd. Johnson and Dacatur Cos. Woods 

 frequent. 



A. kevis L. Decatur Co. Woods, open places, common. 



A. diffusus Ait. Decatur Co. Low woods, common. 



Urigeronbellidifolius Mnhl. Johnson Co. Woods, infrequent. 



E strigoms Muhl. Shelby and Johnson Cos. Fields and 

 waste places, common. 



E. ■philadelphicus L. Decatur, Shelby, and Johnson Cos. Rich 

 woods, frequent. 



E. divaricatns Mx. Decatur, Appanoose, and Johnson Cos. 

 Dry soil, pastures, common. 



E. canadense L. Decatur and Appanoose Cos. Waste places, 

 common. 



E. annuusPers. Appanoose, Shelby, and Johnson Cos. Waste 

 places, common. 



Antennariaplantaginifolia Hook. Decatur, Appanoose, Shelby, 

 Page, and Johnson Cos. Meadows and upland woods, common. 



Anaphalis margaritacea Benth. & Hook. Decatur and John- 

 son Cos. Dry woods, frequent. 



Inula helenium L. Johnson Co. Open woods, frequent 

 locally. 



Polumnia canadensis L. Des Moines Co. Along cliffs, fre- 

 quent. 



Silphium perfoliatum L. Decatur, Van Buren, Des Moines, 

 Shelby, and Johnson Cos. Low grounds, frequent. 



S. integrifolium Mx. Decatur, Appanoose, Van Buren, and 

 Jotinson Cos. Prairies and open woods, frequent. 



S. laciniatum L Decatur, Appanoose, and Johnson Cos. 

 Prairies, common. 



Parthenium integrifolium L. Decatur, Appanoose, and John- 

 son Cos. Prairies, common. 



Amhtxysia artemiscefolia L. Decatur, Appanoose, Wapello, 

 Van Buren, and Johnson Cos. Waste places, very common. 



