152 IOWA ACADEMY OF SCIENCES. 



Gnicus lanceolatus Hoffm. Decatur, Appanoose, Van Buren, 

 and Johnson Cos. Fields and waste places, common. 



G. altissimiLs Willd. Decatur and Johnson Cos. Waste 

 places, frequent. 



G. altissimus discolor Gray. Johnson Co. Waste plaBes, fre- 

 quent. 



G. sirvensis Hoffm Decatur and Johnson Cos. Fields and 

 waste places, infrequent. 



Krigia amplexicaulis Nutt. Johnson Co. Woods, frequent. 



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

 quent. 



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

 frequent. 



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



Prenanfhes aspera Mx. Decatur "Co. Open woods, frequent. 



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



P. aJba 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 Li. 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. 



