FLOURS. 



PLATE XVIII. 



Fig. 28. Lentil Flour. (x240.) 



a, Starch grains. 



co, Cells of the cotyledon, some empty, others; filled with starch and 

 aleurone. 

 cu, Cuticle. 

 p, Parenchyma. 

 pa, Palisade cells, surface view. 

 p' a', Palisade cells, sectional view. 

 sa, Hour-glass cells, 

 s' a', Bearer cells (sectional view). 

 t, Epidermis of cotyledon. 



