DEPARTMENT OF AGRICULTURE. 



BOTANICAL DIVISION. 



BULLETIN NO. 6. 



GRASSES OF THE ARID DISTRICTS. 



REPORT 



OF AN 



INVESTIGATION OF THE GRASSES 



OF THE 



ARID DISTRICTS OF TEXAS, NEW MEXICO, 

 ARIZONA, NEVADA, AND UTAH, 



IN 



1887. 



WASHIJSTGTOlSr: 



GOVERNMENT ^PRINTING OFFICE, 



1888. 



