50 VARIOUS: FOOD-PLANTS 
Fic. 39 IIl.—Kidney Bean. A, flower, about twice natural size. B, the 
same with wings pressed down as if by a bee sucking nectar; showing 
the stigma and pollen-covered end of the style protruding from the 
coiled tubular keel. A bee’s head or back covered with bean pollen 
would be in position to deposit some of the grains upon the protruding 
stigma and thus enable the plant to set good seeds, while an instant 
later it would be touched by the pollen on the style and so receive a 
new load to take to another bean-flower. C, a flower cut in halves 
vertically to show the arrangement of parts before protrusion of the 
stigma. Enlarged and somewhat diagrammatic. (Original.) 
