

SMITHSONIAN INSTITUTION 

 UNITED STATES NATIONAL MUSEUM 



CONTRIBUTIONS 



FROM THE 



United States National Herbarium 



Volume X, Part 1 



NORTH AMERICAN SPECIES 

 OF,FESTUCS 



By CHARLES V. PIPER 



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PERN 



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/ORB 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 

 1 9 (■) 



