146 IOWA ACADEMY OF SCIENCES. 



Tiedemannia rigida Coult. & Rose. Decatur Go. Wet sloughs, 

 frequent; often on high prairies. 



Heracleum lanatum Mx. Decatur and Shelby Cos. Rich 

 woods, common. 



Oicuta maculata L. Decatur, Appanoose, Van Buren, and 

 Johnson Cos. Wet places, common. 



Thaspium barbinode Nutt. Des Moines and Johnson Cos. 

 Woods, frequent. 



PLmpiella integerrima Benth & Hook. Decatur, Appanoose, 

 and Johnson Cos. Woods, frequent. 



Polytamia nuttallii DC. Decatur and Appanoose Cos. Dry 

 woods, infrequent. 



Cryptotcenia canadensis DC. Decatur, Appanoose, Shelby, and 

 Johnson Cos. Rich woods, common. 



Svum cicutcefolium Gmelin. Decatur and Des Moines Cos. 

 Shallow ponds, frequent. 



Fceniculum officinale All. Johnson Go. Occasionally an 

 escape. 



Zizia aurea Koch. Decatur and Shelby Cos. Low grounds, 

 common. 



Chair opliyllumprocumbens Crantz. Decatur, Henry, and John- 

 son Cos. Low woods, frequent. 



Osmorrhiza longistylis DC. Decatur, Shelby, and Johnson Cos. 

 Rich woods, frequent. 



0. brevistylis DC. Decatur, Appanoose, Shelby, and Johnson 

 Cos. Rich woods, frequent. 



Eryngium yuccaifolium Mx. Decatur, Appanoose, Shelby, and 

 Johnson Cos. Prairies, common. 



Sanicula marylandica L. Decatur, Shelby, and Johnson Cos. 

 Woods, common. 



S. marylandica canadensis Torr. Appanoose and Johnson 

 Cos. Woods, frequent. 



ARALIACE^E. 



Aralia racemosa L. Van Buren, Des Moines, and Johnson 

 Cos. Woods, frequent. 



A. nudicaulis L. Johnson Co. Woods, frequent. 



A. quinquefolia Decs. & Planch. Johnson Co. Woods, fre- 

 quent, Seems to prefer the north hill sides. 



