i. Wheat: ripe ear, flower spike, and loliage. 2. Oats. 3. Barley: flower spike, ripe ear, and leaves. 4. Maize: 

 plant and ripe cob. 5. Rice : plant and ripe head. 6. Tea. 7. Hops. 8. Vanilla : flower and pod. 9. Cotton : 

 flower branch, and bursting pod. 10. Flax. n. Sugar Cane. 12. Coffee. 13. Cacao. 14. Para indiarubber plant. 



15. Tobacco. 1 6. Hemp. 17. Indigo 



PLANTS CULTIVATED FOR THEIR GREAT COMMERCIAL VALUE 



