Instructions To The Examiner

vjysawant / botany department

INSTRUCTIONS TO THE EXAMINER B.Sc.II Practical Exam. Botany Paper VII Q1. Describe, identify and classify up to the genus and Species, giving reasons specimen ‘a’ Give floral formula and floral diagram Requirement: Flowering twigs of following plants 1. Ranunculaceae - Ranunculus scleratus 2. Brassicaceae – Brassica campestris 3. Malvaceae - Hibiscus rosa- sinensis 4. Rutaceae - Citrus medica 5. Papilionaceae - Clitoria ternatea 6. Caesalpinaceae – Caesalpinia pulcherima 7. Mimosaceae - Acacia nilotica 8. Apiaceae - Coriandrum sativum Dissecting microscope, slides, cover slip, water, needle, blade, blotting paper etc. *Scheme of marking – Description with the diagram Classification with reasons Floral formula Floral diagram

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Q.2. Describe, identify and classify up to the family, giving reasons specimen ‘b’ Give floral formula. Flowering twigs of following plants 1. Apocynaceae - vinca rosea 2. Asclepiadaceae - calatropis procera 3. Solanaceae - Datura innoxia 4. Acanthaceae – Adhatoda vasica 5. Lamiacaeae – Oscimum sanctum 6. Chenopodiaceae – Chenopodium album 7. Euphorbiaceae - Euphorbia pulcherrima 8. Liliaceae - Allium cepa 9. Poaceae - Triticum aestivum Desecting microscope, slide, cover slip, water, needle, blade and blotting paper *Scheme of marking – Description with the diagram 10 Classification with reasons 03 Floral formula 02

vjysawant / botany department

Q.3. Describe anatomical features of specimen ‘C’ (gymnosperms) and make double stained permanent slide. Cycas rachis, Cycas leaflet Pinus young stem Pinus old stem, Pinus needle Ephedra stem Microscope, slide, cover slip, water, needle, blade, blotting paper, watch glasses, safranin, light green, Different alcohol grades - 30% alcohol, 50% alcohol, 70 % alcohol, 90% alcohol and 100% alcohol. Different grades of alcohol and xylene - 3:1 alcohol : xylene, 2:2 alcohol:xyline, 1: 3 alcohol : xylene, pure xylene, Cycas corolloid root, Safranin made in 70% alcohol, Light grain made in 100% alcohol, Mounting medium DPX/ Glycerin jelly / Canada balsm. *splitting of marks – description with the diagram hand section staining Q.4.D and E – (Angiosperms morphology) 1. Valvate aestivation in Acacia 2. Twisted aestivation in Vinca 3. Imbricate aestivation in Caesalpinia 4. Vexillary aestivation in Clitoria 5. Cruciform corolla of Brassica 6. Papilionaceousa corolla of Clitoria 7. Infundibuliform corolla of Datura 8. Bilabiate corolla of Oscimum 9. Tetradynamous stamens of Brassica 10. Didynamous stamens of Oscimum 11. Monadelphous stamens of Hibiscus 12. Diadelphous stamens of Clitoria 13. Translators of Calatropis 14. Marginal placentation in Caesalpinia 15. Parietal placentation in Brassica 16. Axial placentation in Citrus 17. Racemose inflorescence in Caesalpinia 18. Cymose inflorescence in Calatropis 19. Umbel inflorescence in Coriandrum 20. Spike inflorescence in Adhatoda 21. Verticillaster inflorescence in Oscimum 22. Cyathium inflorescence in Euphorbia 23. Siliqua fruit of Brassica 24. Hesperidium fruit of Citrus 25. Legume fruit of Acacia

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vjysawant / botany department 26. Cremocarp fruit of Coriandrum 27. Etaerio of follicles of Calatropis 28. Capsule fruit of Datura 29. Regma fruit of Ricinus 30. Caryopsis fruit of Wheat F- Angiosperms (economic importance) Black funnel Butter cup Cotton Citrus Pea Tamarind Siris Coriander Sarpagandha Madar Potato Vasaka Menthe Spinach Amla Onion Maize G & H : Gymnosperms 1. Cycas normal root t. s. 2. Cycas stem t.s. 3. Cycas ovule l.s. 4. Cycas male cone w.m. 5. Cycas megasporophyll w.m. 6. Pinus root t.s. 7. Pinus male cone l.s. 8. Pinus female cone l.s. 9. Ephedra male cone l.s. 10. Ephedra female cone L.s. 11. Impression 12. Compression 13. Petrifaction 14. Amber

Mustard Radish Aegle Gold Mohor Brahmi Milkweed Barleria Chenopod Asparagus

Shoeflower Soya bean Babul Periwinkle Datura Basil Castor Wheat