GRASSES OF IOWA 355 



to 8 lines (6-16 mm.) wide, more or less scabrous. Spikes 3 to 6 inches 

 (6-12 cm.) long, the rachis much flattened, and ciliate along the edges; 

 the internodes about \ line (6 mm.) long. Spikelets about one-half an 

 inch long, at first erect, widely spreading in fruit. Empty glumes awn- 

 like, usually present in the lower spikelets, which they sometimes equal 

 in length. Awns of the flowering glumes about 1 inch (24 mm.) long. 

 Straight or sometimes divergent. July-August. 



This grass is common in most sections of the state, borders of woods 

 or in woods. The grass is of little agricultural value. 



DISTRIBUTION. 



Iowa. Pilot Mound 3048 (Miss King and MacCorkindale) ; Ft. 

 Dodge (Oleson) ; Steamboat Rock 3148, Postville 3349, Myron 3328 

 and 3324 (Miss King) ; Lebanon 24 (Ball and Sample) ; Mason City 

 3132 (Miss King and Brown); Nodaway River (Stewart); Dallas 

 Center 819 (Rhinehart) ; Ames (Hitchcock, Ball 140, Louthan, Chas. 

 Wilson, Sirrine, Beardslee) ; Emmet County 1053 (Cratty) ; Ledges, 

 Boone County, Carroll 1425, Mason City (Pammel) ; Iowa City 

 (Hitchcock, Van Cleve, Warden); Lebanon (Sample); Comanche 

 (Ball) ; Jackson County, Iowa City (Shimek, Preston Miss Linder), 

 Winneshiek County (Fitzpatrick) ; Fayette (Fink); Marshalltown 

 (Eckles) ; Story City (Stewart and Pammel); Mt. Pleasant 862 

 (Mills); Boone, Winterset, Jewell Junction (Carver); Wilsonville 

 (Taylor) ; Alden 1129 (Stevens) ; High Bridge, Dallas County, Hack- 

 berry Grove, Keokuk County (Shimek). 



North America. New Brunswick to Ontario, New England south 

 to Ohio (Pickerington, Horr), Florida (Curtiss), and west to Texas, 

 and northwest to Illinois, Wisconsin (Parry; La Crosse, D. S. and Edna 

 Pammel; Geneva, Carver; C. R. Ball), Minnesota (Parry), Kansas, 

 Nebraska, Missouri (St. Louis, Eggert), Arkansas. 



