412 BEVIEW QUESTIONS 



VII. Compare the saccharine and non-saocharine sorghums 

 with respect to (o) adaptation to soil, (b) climate, (c) methods 

 of culture, (d) uses, (e) extent of culture, (/) yield and value. 



VIII. Compare the kaflrs with the milo in respect to their 

 (a) distribution, (b) adaptation, (e) cultural method, (d) uses 

 and value. 



IX. (a) What relationship exists between the mill ets and 

 broom-corns ? Give the botanical characteristics of the broom- 

 corns. (6) Discuss them as to (1) adaptation, (2) extent of 

 culture, (3) value, (4) cultural methods. 



CHAPTER XIII 



I. (a) Tell something of the membership of the Leguminosae 

 family. (6) How does the Papilionacese group get its name? 

 In common usage the term " legume " refers to which members 

 of the Leguminosffi family ? 



II. Compare the following botanical characteristics of the 

 legumes with the grasses : (a) root sj'stem, (b) stem development, 

 (c) leaves, (d) flowers, (e) fruit, (/) seeds. 



III. Dissect a flower of the pea or bean, noting the arrange- 

 ment of parts and their functions. How do we know that insects 

 play an important role in the pollination of certain legumes. 



IV. Tell the story of the discovery of the relationship of the 

 legumes to the nodule bacteria. How do both the legume and 

 the bacteria profit by their close relationship ? Does each legume 

 have a certain type of bacteria with which it lives in symbiosis ? 



V. How do the bacteria become distributed over such large 

 areas? What methods of inoculation may be employed? 



CHAPTER XIV 



I. To what genus do the true clovers belong ? 



II. Discuss the historj' of the red clover. By what other 

 names is it known ? Answer the same questions for alsike, white, 

 crimson and mammoth clovers. 



III. Compare the following botanical characteristics of the 

 above clo^-ers : (a) root system, (6) extent and development of 

 stems, (c) leaves, (d) flowers, (e) seeds, (/) length of life. 



IV. Compare them with respect to (a) adaptation to soils, 



