EXERCISES 



335 



Short-awned or awn-pointed 



Small, dark brown seeds, very rough near tip ... Crested Dog s-Tail 



3/ 8 inch long, smooth, light colored .Wheat-Grass 



% inch or less in length Orchard-Grass 



Author's "Examining and Grading Grains," published by Ginn & Co. 



FIG. 143. Crested dog's tail: FIG. 144 Orchard grass: A, magni- 



A, magnified seeds; B, natural size. fied seeds; B, natural size. 



B 



Author's "Examining and Grading Grains," published by Ginn & Co. 



Fia. 145. Wheat grass: A, magni- FIG. 146. Brome-grass: A, magni- 



fied seeds; B, natural size. fied seeds; B, natural size. 



Awnless 



% inch long or thereabouts, nerves very prominent . . . Brome-GrasB 



About 14 inch long f Note difference in shape 1 . Perennial Rye-Grass 



light brown . . . . \ and size of rachilla . . . j Meadow Fescue 



