6 BULLETIN 201, U. S. DEPARTMENT OF AGRICULTURE. - 



AGROSTIS HIEMALIS (Walt.) B. S. P. 



Agrostis hiemalis (bent-grass) is very likely to take possession of situations in the 

 mountains which for some reason have become completely denuded of other vegeta- 

 tion. Its extensive purplish panicles make it very conspicuous in such places, for it 

 often grows almost pure. It is a species of comparatively little value, although often 

 grazed in close pastures. 



No. 8847 was collected at Summit, Mont., August 15, 1907. The sample was col- 

 lected in late blossom and cut close to the ground. 



Material analyzed. 



Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Ash. 



Ether 

 extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. . 



Protein. 



Pento- 

 sans. 



Our sample No. 8847 

 Average of 4 others > 



Average of all. 



5.62 



7.31 

 7.18 



7.21 



4.85 

 2.96 



30.03 

 32.30 



51.85 

 48.96 



5.96 



3.34 



31.84 



49.54 



07 



i South Dakota Bui. 40, p. 81. Wyoming: Bui. 70, p. 18; Bui. 87, p. 19. 

 ALOPECURUS FULVUS Sm. 



Alopecurus fulvus is a much smaller species of foxtail than the one that follows and 

 is of much less importance. It inhabits low, wet, loose soils of high mountain meadows, 

 and, like the other species, it sheds its seeds from the top downward immediately after 

 they ripen. It may often be found growing in the water, but not in stagnant pools. 

 While furnishing considerable feed in limited areas, it is not nearly as important as 

 the other species. (PL II, fig. 2.) 



No. 8864 was collected at Summit, Mont., August 15, 1907. The sample was per- 

 fectly green and succulent, although half of the seeds had dropped off. It was cut 

 close to the ground. 





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. 8864 



7.87 



6.90 

 12.12 



2.89 

 3.75 



29.51 

 27.19 



52.39 

 46.64 



8.31 

 10.30 



20.39 

















10.38 



3.46 



27.97 



48.55 



9.64 











i South Dakota Bui. 40, p. 72; Wyoming Bui. 70, p. 23. 



ALOPECURUS OCCTDENTALIS Scribn. 



Alopecurus occidentalis (mountain foxtail) is an important grass in high mountain 

 meadows of the Rocky Mountain region. It resembles more closely than any other 

 common grass the cultivated timothy. It frequently makes practically pure crops 

 of considerable extent in wet situations. It commonly attains a height of 2 J feet 

 and will often yield 2 tons of hay to the acre. The areas where it grows most satis- 

 factorily are usually too wet to be either grazed or cut in early summer, but by August, 

 when the grass matures, these are often so well dried up that they can be harvested. 

 It is probably more valuable for hay than for grazing. 



No. 8862 was collected at Summit, Mont., August 15, 1907. The specimen was 

 overripe, about half of the seeds had fallen, but the culms and leaves were still green. 

 It was cut about 2 inches above the ground. 



