152 IOWA ACADEMY OF SCIENCES. 



Cnicus lanceolatus Hoffm. Decatur, Appanoose, Van Buren, 

 and Johnson Cos. Fields and waste places, common. 



C. altissimvs Willd. Decatur and Johnson Cos. Waste 

 places, frequent. 



C. altissimus discolor Gray. Johnson Co. Waste places, fre- 

 quent. 



C. arveiisis Hoffm Decatur and Johnson Cos. Fields and 

 waste places, infrequent. 



Krigia ampJexicaulis Nutt. Johnson Co. Woods, frequent. 



Hiersbcium canadense Mx. Johnson Co. Open woods, infre- 

 quent. 



H. scabrum Mx. Decatur and Johnson Cos. Dry woods, 

 frequent. 



H. longipUum Torr. Decatur Co. Sandy prairie, infrequent 



Prenanthes aspera Mx. Decatur Co. Open woods, frequent. 



P. crepidinea Mx. Johnson Co. We have one specimen. 



P. alba Johnson Co. Woods, frequent. 



Lygodesmia Juncea Don. Shelby Co. Fields and waste 

 places, common. 



Troximon cuspidatum Pursh. Shelby and Johnson Cos. 

 High prairies, infrequent. 



Taraxacum officinale Weber Shelby, Page, Decatur, Appa- 

 noose, Wapello, Van Buren, and Johnson Cos. Pastures and 

 waysides, common. 



Lactuca scariola L. Van Buren, Henry, and Johnson Cos. 

 Waste places, frequent. 



L. canadensis L. Decatur and Johnson Cos. Waste ground, 

 frequent. 



L. acuminata Gray. Decatur, Van Buren, Des Moines, and 

 Johnson Cos. 



Sonchus asper Vill. Decatur and Johnson Cos. Waste 

 grounds, frequent. 



S. oleraceus Johnson Co Waste grounds, frequent. 



LOBELIACE^. 



Lobelia cardinalis L. Appanoose and Johnson Cos. Wet 

 low woods, frequent. 



L. syphilitica L. Decatur and Johnson Cos. Moist soil, 

 common. 



L. spicata Lam. Decatur, Van Buren, and Johnson Cos. 

 Fields, common. 



