EXAMINATION PAPERS. 237 



20. Define the difference between natural and special forms of 

 leaves; tetween simple and compound leaves. Give example of 

 each. Sketch a connate-perfoliate leaf. 



21. Mention the parts of an emhryo. Of a leaf. Of a pistil. Of a 

 stamen. Of a seed. 



22. What is meant by an albuminous seed 1 By dioecious flowers ? 

 By a compound ovary 1 



23. What is the difference between determinate and indeterminate 

 inflorescence? How do they influence growth of the stem. Give 

 three principal kinds of each. 



24. Name the parts of a flower. What ofSce is performed by the 

 ovule? Name two kinds. 



25. Name the parts of a vegetable cell. What are spiral ducts ? > 



26. In what parts of the plant is the work of absorption carried 

 on ? In what part the work of assimilation ? How do the plants 

 purify the air for animals ? 



27. Explain the natural system of classification in Botany ? Name 

 and characterize the classes of plants. 



28. Explain the structure and functions of the Leaf, Bud, Boot. 



29. Giwe some of the terms used in describing the shape of a 

 simple leaf as concerns (a) its general contour, (6) its base, (c) its 

 margin, (d) its apex. 



30. Name the organs in a perfect flower; describe fully the 

 structure of the anther and pollen. What is coalescence and adna- 

 tion of the parts of a flower ? 



81. Explain the terms Baceme, Pappus, Coma, Khizome, Pentas- 

 tichous. 

 32.^State the distinction between Exogens and Endogens. 



33. What are cellular structures as distinguished from, vascular? 

 What is chlorophyll ? 



34. Mention the organs of fructification, and explain the process 

 of fertilization in a flowering plant. 



35. Explain the structure of a seed, and describe in a few words 

 the process of germination. 



36. Define what is meant by the following terms : Morphology, 

 Polycotyledonous, Epiphyte, Peduncle, Stipules. , 



37. Describe briefly the root, stem, leaf, and flower of the common 

 dandelion, giving the functions or office of each. 



38. Name some of the most common forms of leaves, giving a 

 few rough outlines. 



