U. S. DEPARTMENT OE AGRICULTURE. 



DHISIOX OF Ii(n'AN"\' 



CONTKIBI-TTIONS 



THE U. S. NATIONAL HERBARIUM, 



Vol. Ill, No. 8. 



ISSTTETl .TIT^NrT". 18, 1806. 



FLORA OF THE BLACK HILLS OF SOUTH DAKOTA. 



P. A. KVDBKRO. 



WASHINGTON: 



govkkn:\i];nt imjintin(^ ofkk^e. 

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