FIELD MUSEUM OF NATURAL HISTORY. 

 \ 



PUBLICATION 199. 



BOTANICAL SERIES. VOL. IV, No. i 



NEW SPECIES OF XANTHIUM 

 AND SOLI DAGO. 



BY 



CHARLES FREDERICK MILLSPAUGH 



AND 



EARL E. SHERFF. 



CHARLES FREDERICK MILLSPAUGH 

 Curator, Department of Botany. 



CHICAGO, U. S. A. 

 April, 1918. 



Issued 

 April 22, 1918 



