NATIVE PASTURE GRASSES OF THE UNITED STATES. 





Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 





6.26 



4.49 

 10.67 



2.26 

 3.13 



31.73 

 30.71 



55.42 

 49.33 



6.10 

 6.16 



24 96 

















9.90 



3.02 



30.84 



50.09 



6.15 











i Colorado Bul. 12, p. 65; Oregon Report, 1903, p. 47; Washington Bui. 72, p. 15; Wyoming Bul. 76, p. 16. 



AGROPYRON TENERUM Vasey. 



Agropyron tenerum is generally known as slender wheat-grass in experiment-station 

 and departmental literature. It has been given considerable prominence as a promis- 

 ing grass for cultivation, and its seed has been placed on the market by seed firms. It 

 has good habits, makes a good quality of hay, and is palatable to stock. There are 

 many varieties of it, some of the natives from the Rocky Mountain region being much 

 ranker and taller in their habits of growth than the forms which have been upon the 

 market. 



No. 8791 was collected near Fargo, N. Dak., August 8, 1907. No. 8837 was collected 

 at Havre, Mont., August 13, 1907. This sample was a tall, rank, robust form, growing 

 in large bunches; it was mature, but all green except the heads. 





Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 



Our sample No. 8791 



6.64 



5.41 



6.65 



6.64 

 7.17 



2.62 

 3.24 

 2.07 



33.73 



37.49 



• 34.79 



50.10 



46.49 

 47.73 



6.90 

 6.14 

 8.24 



25 88 



Our sample No. 8837 



26.49 

















7. 08 2. 23 



34.94 



47.82 



7.93 















1 Canada Central Experiment Farm Bul. 19, pp. 28-29. Colorado Bul. 12, p. 64. Montana Report, 1902, 

 p. 66. South Dakota: Bul. 40, p. 147; Bul. 69, p. 27. Wyoming: Bul. 65, p. 14; Bul. 87, p. 15. 



AGROSTIS ASPERIFOLIA Trln. 



Agrostis asperifolia (rough -leaved bent-grass) is especially common in moist situations 

 from the Mississippi River westward. It is readily grazed by all classes of live stock, 

 but is never abundant enough to receive serious consideration. It inhabits the edges 

 of running streams or fresh-water pools, where the ground may be covered with water 

 for some little time. In such situations small patches of it grow, but the areas are 

 never extensive. 



No. 8867 was collected near Summit, Mont., August 15, 1907. This sample was col- 

 lected in blossom and cut close to the ground. No. 8890 was collected at Hood River, 

 Oreg., August 23, 1907. The seeds in the sample were all ripe, and half of the leaves 

 were dry. This sample was cut 2 inches high. 





Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 



Our sample No. 8867 



5.86 

 5.56 



6.55 

 15.03 

 8.11 



2.33 



1.97 

 2.64 



32.60 



30.26 

 24.89 



45.93 

 47.71 

 53.95 



12.59 



5.03 



10.41 



23.51 



Our sample No. 8890 



22.18 

















9.01 



2.47 



27.07 



51.57 



9.88 











i Colorado Bul. 12, p. 40; Connecticut Report, 1879, p. 155; Montana Report, 1902, p. 66; U. S. Depart- 

 ment of Agriculture Report No. 32, 1884, p. 127. 



