200 
IOWA ACADEMY OP SCIENCES. 
S. atrovirens Muhl. Montgomery county. 
Carex lupulina Muhl. Page county. 
G. vulpinoidea Mx. Union, Adams, and Montgomery coun- 
ties. Moist soil; common. 
C. rosea Schkur. Pottawattamie county. 
G. cephalophora Muhl. Pottawattamie county. 
G. 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. glahrum Gaud. Decatur county. 
P. lanvginosum Ell. Union county. Waysides; frequent. 
P. macrocarpon 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. 
Genchrus 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. 
Grysopogon nutans Benth. Taylor county. Prairies; fre- 
quent. 
Plialaris canariensis L. Decatur county. Waste places; 
streets; infrequent. 
Aristida oligantlia Mx. Taylor county. Dry soil; frequent. 
Stipa. spartea Trin. Union, Adams, and Montgomery coun- 
ties. Prairies; frequent. 
Mulilenbergia mexicanaTTin. Decatur county. Low places; 
common. 
