Bulletin No. 9. 



Agros. 20. 



U. S. DEPARTMENT OE AGRICULTURE. 



DIVISION OF AGROSTOLOGY. 

 [OraS!ii and Foraa;c Plain In veMiigatioun.] 



NOTES 



ox THE 



GRASSES AND FORAGE PLAxNTS 



OF 



IOWA, NEBRASKA, AND COLOEADO. 



r.Y 



L. H. PAMMEL, 



Professor of Botany in Iowa Agricultural College. 



PREPAKED rXDEK THE DrRECTIOX OF THE AGROSTOLOGLST. 



• WASHIXGTON: 



GOVERNMENT PRINTING OFFICE. 



189 7. 



