19 



PART 11. 



GENERAL CHARACTERISTICS AND IDENTIFICATION OF 

 LEGUMES AND OIL SEEDS. 



PEA. 



{Pisum saliviDii, L.) 



Both field and garden peas are sometines found in commercial 

 feed stuft's and are so well known in their whole state as to require 

 little description. The field peas are, however, of a brownish 

 color and smooth, while those of the latter class are pale green 

 and may have a roughened surface. Both classes are nearly 

 spherical in shape. As a rule they are found in ground condition. 



Figure 11 

 Fig. 11. Pea. (1) Palisade cells with (1) "Light" line, and (a) hour 

 glass or "figure eight" cells; (2) Pea starch. 



When the whole pea is ground the identification is very easy as 

 the grains of pea starch are characteristic. They are ellipsoidal 

 or roundly elliptical, and often have rounded protuberances on 

 the grain. In size they are rarely over 40m through their longest 

 diameter. The laminae are usually distinct and the hilum much 



