'S^ 



THE CEREALS IN AMERICA 



to terminal ear, staminate flowers on cob, stamlnate flower oi 

 even tassel at end of ear or between two separate ears on the 

 same axis, branching cobs and hence ears 

 in a variety of forms, two grains in a 

 single cupule or alveolus, embryo face re- 

 versed or sidewise, two embryos in one 

 grain, variegated color in leaves, and red 

 husks. 



II. COMPOSITION. 



231. Grain. — While it has been shown 

 that considerable variation may be found 

 in the composition of individual ears of 

 the same variety of maize, the average 

 composition of the grain of all varieties 

 and of dent and flint varieties is practi- 

 cally identical. The variation in sweet maize is doubtless due 

 to the relatively small development of the endosperm. Aside 

 from sweet varieties, the rather striking difference in appear- 

 ance and physical structure is apparently not due to chemical 

 composition. 



The following is a compilation of American analyses of 

 the grain of all varieties of maize and of the three principal 

 types : ^ 



Two embryos in one grain of 

 nriaize ; b, larger plumule; 

 s, smaller plumule ; c, larg- 

 er primary root; t, smaller 

 primary root (after Siirenk). 



232. Fodder and Stover. — The following table gives the 

 1 U. S. Dept of Agr., Office of Expt. Sta. E. S. B. 11, 



