

^6 S M^£&j^< 





U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 33. 



B. T. GALLOWAY, Chief oi Bureau. I<U 



NORTH AMERICAN SPECIES OF LEPTOCHLOA. 



BY 



A. S. HITCHCOCK, 



^^ p — . — ^ 



Assistant Agrostologist, in Charge of Cooperative 

 Experiments, 



grass and forage plant investigations. 





Issued February 10, 1903. 



N0M23S87 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1903. 



