EXAMINATION PAPERS 235 



36. Enumerate the chief nitrogenous and non- nitrogenous sub- 

 stances which are found in plants. 



37. Fill in the accompanying Floral Schedule with a full and 

 accurate description of the specimen under observation. 



McGILL UNIVERSITY. 



1. Describe the germination of a plant. 



2. Explain the differences in the structure of the embryo. 



3. Explain the functions of the Boot. 



4. Describe the structures in a leaf, and explain their action on 

 the air. 



5. Mention the several parts of the stamen and the pistil, and 

 explain their uses. 



6. Describe an Achene, a Samara, a Drupe, and a Silique. 



7. Describe the differences in the stems of Exogens and Endogens, 

 and the relations of these to the other parts of the plant and to 

 classification. 



8. Explain the terms Genera, Species, Order. 



9. What is an excurrent stem, an axillary bud, bud scales ? 



10. Explain the terms primordial utricle, parenchyma, proto- 

 plasm, as used in Botany. 



11. What are the functions of the nucleus in a living cell ? 



12. Explain the movements of the sap in plants. 



13. Describe the appearance under the microscope of raphides, 

 spiral vessels, and disc-bearing wood-cells. 



14. Describe the structure of the bark of an Exogen. 



15. Describe freely the anatomy of a leaf. 



16. Describe shortly the parts and structures denoted by the 

 following terms : spine, aerial root, phyllodium, cambium, stipule, 

 rhizoma. 



17. Give examples of pheenogams, cryptogams, exogens, and 

 endogens, properly arranged. 



18. Describe the principal forms of indeterminate inflorescence. 



19. In what natural families do we find siliques, didynamous 

 stamens, labiate corollas, or pappus-bearing achenes. Describe 

 these structures. 



20. State the characters of any Canadian exogenous order, with 

 examples. 



21. Describe the cell- walls in a living parenchymatous cell. 



22. Describe the fibro-vascular tissues in an Exogenous stem. 



23. Describe the appearance of stomata and glandular hairs under 

 the microscope. 



24. Define prosenchyma, corm, cyclosis, thallus. 



