I UK FLO] OTT AND MUSCATINE COUNTIES. 275 



993. A. scabra, Willd. Hair Grass. 



Dry soil ; frequent. 

 Cinna, L. 



14. C. arundinacea, L. Wood Reed-Grass. 



Moist woods; Allen's Grove, Wild Cat Den. 

 Calamagrostis, Adans. 



995. C. Canadensis, Beau v. Blue- Joint Grass. 

 Wet grounds; rather common. 



Avena, Tourn. Oat. 



996. A. fatua, L. 



B. C. R. & N. tracks, Blue Grass. 

 Danthonia, DC. Wild Oat-Grass. 



997. D. spicata, Beauv. 



Dry rocky soil ; Wild Cat Den, Wyoming Hill. 

 Bouteloua, Lagasca. Muskit-Crass. 



998. B. hirsuta, Lag.. 



Sandy soil; Muscatine Island and the Cedar River region; 

 frequent. 



999. B. racemosa, Lag., var. arislosa, Cray. 

 Sandy soil ; frequent. 



Eleusine, Gaertn. 



1000. E. Indica, Gaertn. Dog's-Tail Crass. 

 Street, Muscatine. 



Triodia, R. Br. 



1 00 1. T. cuprea, J acq. Tall Red Top. 

 Dry gravelly soil, Wyoming Hill. 



1002. T. purpurea, Hack. Sand-Grass. 



Dry sand, Muscatine county; frequent. 

 Phragmites, Trin. Reed. 



1003. P. communis, Trin. 



Borders of ponds ; infrequent. 

 Koeleria, Pers. 



1004. K. cristata, Pers. 



Dry hills and prairies ; rather common. 

 Eatonia, Raf. 



1005. E. obtusata, Gray. 



Dry prairies ; not common. 



