VARIOUS FOOD-PLANTS 



51 



Fig. 40. — Lima Bean {Phaseolus lunatus. Pulse Family, Leguminosm). 

 Plant of a twining variety in flower and fruit x jV. (Vilmorin.) — The 

 plant is an annual closely resembling the Kidney Bean except that 

 the flowers are greenish white and the pods are broad, flattened, and 

 curved like a scimitar. 



large amount of indigestible material (cellulose) in propor- 

 tion to the proteid and other nutritive constituents. From 

 this it follows that not only are earth-vegetables more bulky 

 to store than grains and pulse (and, moreover, cannot or- 

 dinarily be kept longer than a few months) but in order to 



