150 IOWA ACADEMY OF SCIENCES. 



A. trijida L. Decatur, Appanoose, Wapello, Van Buren, and 

 Johnson Cos. Waste ground, common. 



A. trijida integrifolia T. & G. Decatur and Johnson Cos. 

 Waste places, frequent. 



A. psilostachya DC. Decatur and Johnson Cos. Waste places, 

 frequent. 



Xanthiicm canadenseMill. Decatur, Appanoose, Wapello, and 

 Johnson Cos. Fields and waste places, common. 



Eclipta alba Hassk. Johnson Co. Along river banks, infre- 

 quent. 



Heliopsis scabra Dunal. Decatur, Appanoose, Van Buren, 

 Shelby, and Johnson Cos. Prairies, common. 



Echinacea purpurea Moench. Decatur and Appanoose Cos. 

 Woods, infrequent. 



E. angustifolia DC. Decatur, Shelby, and Johnson Cos. 

 Prairies, frequent. 



Rudbeckia triloba L. Decatur, Wapello, Van Buren, and John- 

 son Cos. Open woods, common. 



R. hirta L. Decatur, Appanoose, Van Buren, and Johnson 

 Cos. Open woods and prairies, frequent. 



R. laciniata L. Decatur and Johnson Cos. Low woods, com- 

 mon. 



R. subtomentosa Pursh. Decatur Co. Prairies, infrequent. 



Lepachys pinnata T. & G. Decatur, Appanoose, and Johnson 

 Cos. Prairies, common. 



Helianthus annuus L. Decatur, Appanoose, Van Buren, Des 

 Moines, and Johnson Cos. Waste places, frequent. 



H. rigidus Desf. Decatur and Johnson Cos. Prairies, fre- 

 quent. 



H. occidental is Rid. Johnson Co. Prairies, frequent. 



H. grosse-serratus Mart. Decatur, Appanoose, and Johnson 

 Cos. Low grounds, common. 



H. hirsutus Raf. Decatur and Van Buren Cos. Prairies, 

 frequent. 



H. strumobus L. Johnson Co. Borders and low woods, fre- 

 quent. 



//. tuberosus L. Decatur, Van Buren, and Henry Cos. Low 

 woods and prairies, frequent. 



Actinomeris squarrosa Nutt. Decatur, Appanoose, and John- 

 son Cos. Low woods, frequent. 



mpmlmata Nutt. Decatur, Shelby, and Johnson Cos. 

 Prairies, common. 



