U.S. DEPARTMENT OF AGRICULTURE. 



DIVISION OF BOTANY. 



BULLETIN No. 13. 



GRASSES OF THE PACIFIC SLOl'E, 



INCLUDING ALASKA AND THE ADJACENT ISLANDS. 



PLATES AND DESCRIPTIONS 



GRASSES OF CALIFORNIA. ORE(iON, WASHINGTON, AND THE NORTH- 

 WESTERN COAST, INCLUDING ALASKA. 



Part I. 



By Dk. GEO. YASEY, 



liOTANIST, U. S. IIEPARTMEXT OV AfUlICULTURE. 



ISSUED OC;i'OBEIS tiO, 1S92. 



PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE. 



WASHINGTON : 



GOVERNMENT PRINTING OFFICE. 



i8 9::2. 



