CONTENTS. 



Page. 



Field notes and general observations 7 



Introduction 7 



Iowa 7 



General features of central and western Iowa 7 



Obstacles in the way of growing native forage plants 9 



Nebraska 10 



The forage problem 10 



Nati ve grasses 10 



Colorado 11 



( 'entral and northern Colorado 11 



Forage conditions of the prairies and sand hills 12 



Grasses and forage plants of the foothills and moimtains 13 



Chemical composition of some Colorado forage plants 15 



List of the more important grasses and forage plants of Iowa, Nebraska, ami 



Colorado, with economic notes 16 



List of grasses collected in Iowa, Nebraska, and Colorado 35 



ILLUSTRATIONS. 



Page. 



Fig. 1. Alfalfa {Medicago sativa) 16 



2. B'lj^ B\ne-^tem {.I ndropogoii 2)ioi-iiicialts) 18 



3. Blue Grama ( Bouteloua oUgostachya) 19 



4. P)uftalo-gra8S (Bulhilis dachjloides) 21 



5. Fresh-water Cord-grass {Spariina cynosuroides) 22 



6. Hungarian Brome-grass { Bromus inermis) 24 



7. Kentucky Blue-grass ( 7'oa pratensis) 25 



8. Orchard-grass ( Thictylis glomerafa) 28 



9. Prairie June-grass {Koeleria vriniaia) 29 



10. Short-awned Brome (Bromus hreviaristatuH) 31 



11 . Side Oats fJrama ( Bouteloua ci(rtipetidnh( ) 32 



12. Turkey-foot-grass {Aridropogon hallii) 34 



