25 



these cells are covered on the outer edge with sharp excrescences 

 like saw teeth. The cells of the inner part of the hypoderm are 



Figure 16 

 Fig. 16. Peanut. (2) Cells from fibre layer; T and L shaped cells and 

 (1) long fibre cells. (3) Cells from hypoderm. 



also characteristic of the peanut. These are roughly rectangular 

 in shape, and their walls are very porous. These porous walled 

 cells are very easily identified in the powdered shells. The 

 starch grains are also a help in the identification. They are spher- 

 ical in shape and range in size from 5 — 15^ in diameter; seg- 

 mented forms are of rare occurrence, and the grains do not occur 

 in aggregates. The laminae in the grains are not visible, but the 

 hilum is central and very distinct, and is seldom cleft. The 

 polarization crosses are not very distinct under ordinary condi- 

 tions. Fig. 16 shows the elements of the peanut which are useful 

 in its diagnosis. 



COTTON SEED. 



{Gossy-pium, sp.) 



Cotton seed meal has come into prominence as a feed and is 

 sold in bulk as well as mixed with other substances. It has a 

 vellowish color and a characteristic taste and odor which can 



