THE GENERAL CHARACTERS OF SEEDS 



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Figure 242A 



Figure 242B Figure 242C 



a, b, c, various views of 



Fig. 242. A. Switch Grass (Panicum virgatum). 

 spikelet ; d, "seeds," natural size. 



B. A single spikelet. 



C. Millet (.Panicum miliaceum). 



(A, after Hillman, Bull. Mich. Agr. Exp. Sta. ; B and C, drawings by Char- 

 lotte M. King.) 



Millet {Panicum miliaceum L,.). 



Spikelets acuminate, one-eighth to one-fifth in. long, lower 

 glume acuminate, 5-7-nerved ; third glume subtending the empty 

 palet, 7-13-nerved ; flowering glume indurated, obtuse, shining, min- 

 utely cross-striated; the hulled seeds ovoid, yellowish. Found in 

 clover and alfalfa seed. 



Barnyard Grass {Echinocliloa crusgalli (L.) Beauv.). 



Spikelets with hispid or pubescent nerves; first glume shorter 

 than the third, awned ; second awnless or short-awned ; third with 

 long rigid awn ; flowering glume generally ovate ; one-tenth to one- 

 ninth in. longitudinally striate; palet smooth. Not infrequently 

 found in clovers. 



Fig. 243. A. Barnyard Grass (Echinocliloa crusgalli). A, a floret, back view 

 of the glume. B, front view of floret, showing the palea. C, edge view of 

 the same. D, the spikelet, showing the small first glume, the awned third 

 glume, and the tip of the second. E, a group showing the natural size of 

 the preceding. 



