200 IOWA ACADEMY OF SCIENCES. 



S. atrovirens Muhl. Montgomery county. 

 Carex lupidina Muhl. Page county. 



C. vulpinoidea Mx. Union, Adams, and Montgomery coun- 

 ties. Moist soil; common. 



G. rosea Schkur. Pottawattamie county. 



C. cephalophora Muhl. Pottawattamie county. 



C. cristatella Britton. Adams county. 



Gramine^. 



Spartina cynosuroides Willd. Ringgold, Page, Taylor, and 

 Fremont counties. Wet soil; common. 



Panicum sanguinale L. Page and Fremont counties. Fields 

 and waste places; common. 



P. virgatum L. Taylor county. Low prairies; frequent. 



P. glabruin Gaud. Decatur county. 



P. lanvginosum Ell. Union county. Waysides; frequent. 



P. macrocarjxm Le Conte. Union county. Woods; fre- 

 quent. 



P. crvs-galli L. Ringgold, Page, and Fremont counties. 

 Waste places; common. 



Setaria glauca Beauv. Ringgold, Page, and Fremont coun- 

 ties. Waste places; common. 



S. viridis Beauv. Page, Pottawattamie, and Fremont coun- 

 ties. With the preceding. 



S. italica Kunth. Page county. Waysides; frequent. 



Cenchrus tribuloides L. Fremont county. Sandy shores; 

 common. 



Zizania aquatica L. Ringgold and Page counties. Ponds; 

 infrequent. 



Tripsacum dactyloides L. Adams, Ringgold, and Taylor 

 counties. Wet places; frequent. 



Andropogon scoparius Mx. Decatur county. Uplands and 

 woods; frequent. 



Crysoj)ogon nutans Benth. Taylor county. Prairies; fre- 

 quent. 



Phalaris canarlensis L. Decatur county. Waste places; 

 streets; infrequent. 



Aristida oligantha Mx. Taylor county. Dry soil; frequent. 



Stipo- spartea Trin. Union, Adams, and Montgomery coun- 

 ties. Prairies; frequent. 



Muhlenbergia mexicana Trin. Decatur county. Low places; 

 common. 



