254 GRASSES OF^IOWA. 



DISTRIBUTION. 



Iowa. Clinton, 24b (Pammel) ; Mt. Pleasant (Mills) ; Mason 

 City (Pammel). 



North America. Fields and waste places, dooryards, etc., through- 

 out the United States and British America. New Jersey (Middle- 

 town, Halstcd), Wisconsin (Madison, Pammel; Viroqua, H. A., Pam- 



F10. 170. I'm! fiiniun— a, spikelet; b, floret. (Div. 

 Agros. U. S. Dept. Agrl.) 



mel), Missouri (St. Louis, Pammel), Colorado (Ouray, Shear 1149), 

 Utah (Ogden, Pammel 46), Wyoming (Mud Creek, Pammel 928), 

 Vancouver Island (J. MoCoun). 



General. Great Britain, northern temperate and Arctic Europe, 

 Asia, North Africa. 



