232 IMPORTANT FAMILIES OF PLANTS 



corns, (3) the flint corns, (4) the dent corns, (5) the soft corns, 

 and (6) the sugar corns. 



Sugar cane (Saccharum officinarum) is the well-known 

 tropical and subtropical plant from which the greater part of 

 our sugar of commerce is derived. It is an Asiatic plant, but 

 there are no satisfactory records concerning its early 

 cultivation. 



Broom Corn (Sorghum saccharatum) . This is an African 

 plant which is grown in the United States for the manufacture 

 of brooms and for stock feed. 



QUESTIONS 



1. What are the distinguishing characters of the families Cruciferse, 

 Leguminoseae, Rosacese, Cucurbitacese, Convolvulaceae, Solanacese, Juglari- 

 daceae, Cupulifera, Solanacese, Liliaceae and Graminacse. 



2. (a) Make a list of grain-producing plants. 

 (6) Give the origin of each. 



(c) Give the present range of each. 



(d) Give the uses of each. 



(e) Give the valuation of each. 



3. (a) Make a list of the fibre-producing plants. 

 (6) Give the origin of each. 



(c) Give the present range of each. 



(d) Give the uses 1 of each. 



(e) Give the valuation of each. 



4. (a.) Make a list of the fruit-producing plants. 

 (6) Give the origin of each. 



(c) Give the present range of each. 



(d) Give the uses of each. 



(e) Give the valuation of each. 



5. (a) Make a list of vegetable plants. 

 (6) Give the origin of each. 



(c) Give the present range of each. 



(d) Give the usea of each. 



(e) Give the valuation of each. 



6. (a) Make a list of lumber trees. 

 (5) Give the origin of each. 



(c) Give the present range of each. 



(d) Give the uses of each. 



(e) Give the valuation of each. 



