44 STEMS AND BUDS 



QUESTIONS 



1. What is the stem? 



2. What are nodes? Internodes? 



3. Name and explain the types of stems. 



4. Describe a cross-section of each. 



5. Describe the outside coverings of a stem. 



6. What are tlie annual rings ? 



7. What are the differences between herbaceous and woody stems? 



8. What do you understand by acaulescent? Excurrent? Decumbent? 

 Prostrate ? 



9. Explain the methods by which plants climb. 



10. How can you distinguisli underground stems from roots? 



11. Describe a rhizome. A bulb. A tuber. Give examples of each. 

 12 What are len tides? 



13. What are the various functions of] stems? 



14. Read and give a report of the flower industry of Holland. 



15. Read and give a report of the history of the potato. 



10. Explain the natural methods of plant propagation by means of 

 stems. 



17. What are the artificial methods of plant reproduction by stems? 



18. Compare a corn stalk with the stem of a woody plant. 



19. What are medullary rays? 



20. Through what part of the stem does water rise? How demonstrated? 



21. When you examine the cut end of a large woody stem what 

 do you see ? 



22. What occurs when planta are exposed so as to receive the sun on 

 one side only? 



23. What is the general direction of stem growth as compared with 

 root growth ? 



24. \Miere do you find the fibro-vascular bundles in the tuber of the 

 Irish potato? 



25. Compare the tuber of the Irish potato with the root of the 

 sweet potato. 



2G. What is a bud? 



27. What is a flower bud? 



28. Where are buds borne? 



29. When are buds produced ? 



30. What do you understand by apical, lateral, opposite, alternate, 

 axillary, accessory and adventitious buds? 



31. Do all the leaf buds grow into shoots? Whyl 



32. What do you mean by definite and indefinite growths? 



33. What are the eyes of the potato tuber? 



