322 TYPICAL FLOWERING PLANTS 



scattered fibro-vascular bundles. The fruit consists of 

 grains in which the ovary adheres closely to the seed. 

 Corn depends upon the wind for pollination. The stamens 

 are in the tassels and the style of the pistil is the silk. It 

 is a monoecious plant. 



QUESTIONS 



How does the bean plant begin life ? Explain the work of each part of 

 the plant. What is the importance of photo-synthesis ? What is the dif- 

 ference between pollination and fertilization ? Why are beans valuable ? 

 What is a food ? How can you show that any given substance is a food ? 

 How do roots help the leaves ? How do the stems help the leaves ? 

 Compare the corn plant with the bean in structure, importance, etc. 



REFERENCES 



Campbell, University Textbook of Botany, p. 9. 



Coulter, Barnes and Cowles, Vol. I, pp. 363-380. 



Kellogg, The Animals and Man, Chapter 15. 



Leavitt, Outlines of Botany. Roots, pp. 26-44. 



MacDougal, Enzymes, pp. 173, 265, 274. 



Needham, General Biology, pp. 7-33. 



Sedgwick and Wilson, Biology, Chapter I. 



U. S. Department of Agriculture Bulletins. 



Coulter, Plant Life and Plant Uses, Chapters 1, 2, 4, 5, 6, 7, 8. 



