280 Inheritance of Glume Length and of Colour in Oats 



Fig. 9. Portion of transverse section of a purple grain showing pericarp and adjacent 

 tissues. X 190. 

 ^Z = aleurone. Ep—e^\CBX^. (J = girdle cells. iH=me8odenn and hypoderm. 

 P = perisperm. <S = spermoderm. r= tube cells. 

 Fig. 10. Superficial view of girdle cells in part overlaid by epicarp and mesocarp after 

 removal of the underlying tissues, x 190. 

 ^= False sap tints, — tannin yellow, dark reddish brown, and pink. 

 Z= Colour content of an extremely minute streak. 



LITERATURE. 



BiFFEN, R. H., J905. Mendel's Laws of Inheritance and Wheat Breeding. 



Journal of Agricultural Science^ Vol. i. pp. 36, 37. 

 East, E. M. and Hayes, H. K., 1911. Inheritance in Maize. Connecticut 



Agricultural Experiment Station Bulletin, No. 167, pp. 57 — 104. 



