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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No. :.………………… Name :...………………….
Fifth Semester B.Sc. Degree Examination, November 2016
First Degree Programme under CBCSS
Core Course: Botany IV
AUBO541: Angiosperm Morphology, Systematic Botany, Economic Botany, Ethno Botany and Pharmacognosy
Time: 3 Hours Max. Marks: 80
SECTION A
Answer ALL questions in one or two sentences.
1. Exalbuminous seeds.
2. Pollinia.
3. Pappus hairs.
4. Hypogyny.
5. Syconus fruit.
6. Free central placentation.
7. Obdiplostemonous condition.
8. Spirocyclic flower.
9. Dye yielding plants.
10. Phylogenetic system of classification.
(10 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding one paragraph.
11. Compare descendingly imbricate and ascendingly imbricate aestivation.
12. Differentiate synandrous and syngenesious condition.
13. Describe the gynoecium of Papilionoideae.
14. Compare legume and follicle.
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15. Comment on the basic rules of Binomial Nomenclature. Cite one example.
16. Mention any four primitive characteristics in Annonaceae.
17. What is gynostegium Where do you observe it
18. What is the botanical name, family and morphology of asafoetida.
19. Mention any two ethnobotanical importance of Ficus religiosa.
20. Name the botanical name and family of species from which sesame oil is obtained.
21. Why Linnaeus system of classification is called a sexual system
22. Mention the scope of Pharmacognosy.
2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. Explain the steps involved in herbarium technique.
24. What is chemotaxonomy How is it useful in taxonomic studies
25. Describe the floral characteristics of Orchidaceae.
26. Write a short note on the merits and demerits of Bentham and Hooker's classification.
27. Draw the floral diagram and floral formula of a typical Asclepiadaceae member.
28. Mention any four economically important plants in Euphorbiaceae and their uses.
29. Compare capsule, lomentum, samara and hespiridium.
30. Write a brief account on the sources of crude drugs.
31. Mention the medicinal values of Vinca rosea and Zingiber officinale.
4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. Make a comparison of three sub families of Leguminosae.
33. Asteraceae is considered as an advanced family in dicotyledons. Comment on this.
34. Explain the general characteristics of Gramineae. Add a note on its economic importance.
35. Write a detailed account on inflorescence and its classification.
15 30 Marks)