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The Pamphlet Collection of Sir Robert Stout: Volume 50
University of New Zealand. — Natural Science. — Paper b (2). Botany
University of New Zealand.
Natural Science.
Paper b (2). Botany.
1. Describe accurately the structure of a growing plant-cell. Give an account of the mechanism of its growth, and state what are the essential external conditions.
2. Describe in detail, with reference to any plants which you may have examined, the appearances presented by a transverse section of
| (a) | an open collateral fibro-vascular bundle. |
| (b) | a closed collateral fibro-vascular bundle. |
| (c) | a closed concentric fibro-vascular bundle. |
3. Explain the meaning of the term "fruit," when used (a) in a physiological sense, and (b) when used in the strictly morphological sense, with reference to Phanerogams.
Illustrate your explanation by reference to the fruits of the sub-orders of Rosacea;.
4. Enumerate the chemical elements which are essential to the nutrition of plants, and briefly state what is known as to the special importance of each element.
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5. Describe, in any instances which you may select,
| (a) | the process of conjugation; |
| (b) | the fertilization of an oosphere by an antherozoid. |
Compare the two processes.
6. Give a comparative account of the structure and development of hypogynous, perigynous, and epigynous flowers. Illustrate your account by reference to examples.
7. What rays of the spectrum are most active in promoting the formation of organic substance by green plants? Adduce evidence in support of your statement.
8. State the characteristics of the group Gymnospermse, and indicate the nature of its affinities with the Vascular Cryptogams on the one hand, and with the Angiosperms on the other.