NATIVE PASTURE GRASSES OF THE UNITED STATES. 



21 





Percent- 

 age of 

 moisture. 



Water-free basis (per cent). 



Material analyzed. 



Ash. 



Ether 



extract. 



Crude 

 fiber. 



Nitrogen- 

 free 

 extract. 



Protein. 



Pento- 

 sans. 



Western samples: 



Our sample No. 8725a 



4.27 



7. GO 

 11.10 



1.43 

 2.25 



31.66 

 28.69 



51.71 

 49.18 



7.60 

 8.78 



28.12 













10.66 



2.15 



29.06 



49.50 



8.63 











Eastern samples: 





8.61 



2.61 



27.33 



54.07 



7.38 











Average of 11 eastern and 





10.11 



2.27 



28.59 



50.74 



8.29 











i Colorado Bui. 12, p. 105. Montana Report, 1902, p. 66. New Mexico Bui. 17, p. 36. 

 Bui. 40, p. US. Washington Bui. 72, p. 15. Wyoming: Bui. 76, p. 38; Bui. 87, p. 45. 

 2 Hatch Station Report, 1903, pp. 15, 87; Connecticut Report, 1889, p. 244. 



South Dakota 



ECHINOCHLOA COLONA Link. 



Echinochloa colona is a common weedy species introduced throughout the warmer 

 sections of this country, but it reaches its best development in the irrigated South- 

 west, where it often enters in an important way into the composition of both hay and 

 pasturage. It is a smaller plant and produces a much finer feed than the coarse 

 barnyard grass. 



No. 8567 was collected near Phoenix, Ariz., September 24, 1906. The sample 

 represented the plant in early maturity. Its percentage of moisture was 4.16. Other 

 constituents (on a water-free basis) were as follows: Ash, 15.33; ether extract, 1.92; 

 crude liber, 30.84; nitrogen-free extract, 44.08; protein, 7.83; pentosans, 20.51. 



ECHINOCHLOA CRUS-GALLI (L.) Beauv. {Panicum crus-galli). 



Echinochloa crus-galli (barnyard grass, or barnyard millet) is an introduced weed 

 common throughout the country. It furnishes considerable quite palatable grazing 

 in waste places, and in moist, rich, loose, soils it commonly forms an important ingre- 

 dient of hay. In some sections of the irrigated West, where water is used injudi- 

 ciously upon newly planted alfalfa and other forage crops, this grass volunteers for 

 several years to the detriment of the crop seeded. Often it persists to some extent 

 continuously. The hay produced by it, if cut in season, is of very fair quality, 

 although rather light. In exceptional cases, where conditions are proper, it has been 

 known to make a yield of 1| or 2 tons to the acre. (PI. VIII, fig. 2.) 



No. 8396 was collected near Green, Tex., August 14, 1906. The sample was a 

 robust form growing in waste places. It was fully 4 feet high. The plants were 

 considerably under maturity and were cut about 4 inches above 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. 8396 



5.15 



15.06 

 9.79 



2.28 

 2.28 



37.86 

 30.85 



36.30 



47.49 



8.50 

 9.59 



19 41 













Average of all 





9.96 



2.28 



31.08 



47.12 



9.56 









1 Canada Central Experiment Farm Bui. 19, pp. 28, 29. Connecticut Report, 1879, p. 155; 1887, p. 103. 

 Hatch Station Report, 1901, p. 35; 1903, p. 91. Iowa Bui. 56, p. 483. Kentucky: Bui. 87, p. 116; Bui. 104, 

 p. 302. Massachusetts Report, 1884, p. 110; 1893, p. 326. New Jersey Report, 1906, p. 37. New Mexico 

 Bui. 17, p. 36. South Dakota: Bui. 40, p. 38; Bui. 69, p. 21. Storrs Report, 1896, p. 280. U. S. Depart- 

 ment of Agriculture Report No. 32, 1884, p. 125. Vermont Report, 1893, p. 115; 1895, p. 195; 1896-7, p. 188. 



