THE ECONOMIC BIOLOGY OF PLANTS 



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Leaf products. 



Fruits. 



Uses 

 Food (mineral salts). 



Flavors. 



Beverage. 



Smoking and chewing. 



Drug (cocaine). 



Pomes, apple, pear Stone fruits, plum, cherry, peach. 



Citrous fruits, orange, lemon Berries, grape, currant, tomato 

 Comp. berries, strawberry, etc. Gourd fruits, squash, pumpkin, 



cucumber. 

 Various fruits, banana, date, olive, vanilla, hops, poppy (opium), 



Spore plant products. 



Mushrooms 

 Iceland moss (jelly) 



5. Fiber plants. 



Plant 

 Cotton 



Location 

 India, Egypt, 



Yeast (in making bread). 

 Bacteria (in making butter, 

 cheeses). 



Uses. 

 Cloth, paper, explosives, batting, 



Flax 

 Jute 

 Hemp 



United States dressings, thread. 

 North Europe Linen, canvas, paper, lace. 



India 

 Europe 



Manila fiber Philippines 

 Coconut fiber Africa 



Burlap, sacking, cordage. 

 Cordage, sail cloth, oakum. 

 Rope, twine, sail cloth. 

 Mats, brushes, upholstery. 



6. Fuels. 



Wood, charcoal, peat, coal, gas (by-products). 



7. Paper. 



Spruce, poplar, etc., cotton and linen waste. 



8. Timber. 



Buildings, furniture, ties, poles, boxes, baskets, chairs, pencils, 



excelsior, veneers. 

 Cork, bark of cork oak, Southern Europe. 



Stoppers, life preservers, linoleum, etc. 

 Rubber, juice of trees, South America and Asia 

 Tires, stoppers, elastics, raincoats, etc. 



9. Tanning materials. 



Barks of oak, hemlock, willow, birch, chestnut, quebracho. 



