3843 



V 



179 



U. S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF BOTANY. 



BULLETIN 1ST o . 12. 





GRASSES OF THE SOUTHWEST. 



PLATES AND DESCRIPTIONS 



OF THK 



GRASSES OF THE DESERT REGION OF WESTERN TEXAS, NEW MEXICO, 

 . ARIZONA, AND SOUTHERN CALIFORNIA. 



Part II. 



By Dr. GEO. VASEY, 



BOTANIST, DEPARTMENT OF AGEICTJ 



ISSUED DECEMBER, lH9l%^fy.QQy . 



PUBLISHED BY AUTHORITY OP THE SECRETARY OF AGRICULTURE. 



WASHINGTON : 



GOVERNMENT POINTING OFFICE. 



1891. 



