GRASSES OF IOWA. 



369 



It is only suited for high and dry soils, and where the con- 

 ditions prevail it should be grown. 



CHEMICAL COMPOSITION. 



Of the Grama grasses two samples were analyzed, one each 

 of Bouteloua oliogostachya^ and Bouteloua racemosa, with the fol- 

 lowing results: 



NATURAL CONDITIONS. 



The following analyses, which have been selected for com- 

 parison with the above, are given to show the general chem- 

 ical composition of the two grasses: 



IN FRESH OR AIR-DRY MATERIAL. 



(1) U. S. Dept. Agrl. Exp. Sta. Bull. 11: 69. 



(2) Bull. S. D. Agrl. Exp. Sta. 40: 98. 1894. 



(3) Bull. New Mexico Exp. Sta. 17. 



Samples were analyses of the grasses as hay, not green fodder. 



