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Question : Descrine the Floral characters of Allium cepa with a neat floral diagram. |
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Answer» Solution :(b) Floral CHARACTERS of Allium cepa : 1. Habit : Perennial herb with bulb. 2. Root : Fibrous adventitious root system 3. Stem : Underground bulb 4. Leaf : A cluster of radical leaves emerges from the underground bulb, cylindrical and fleshy having sheathy leaf bases with parallel venation. 5. Inflorescence : Scapigerous i.e. the inflorescence axis (peduncle) arising from the ground bearing a cluster of flowers at its apex. Pedicels are of equal length, arising from the apex of the peduncle which brings all flowers at the same level. 6. Flower : Small, white, bracteate, bracteolate, pedicellate, complete, trimerous, actinomorphic and hypogynous. Flowers are protandrous. 7. PERIANTH : Tepals 6, white, arranged in two WHORLS of three each, syntepalous showing valvate aestivation. 8. Androecium: Stamens 6, arranged in two whorls of three each, epitepalous, apostamenous/free and opposite to tepals. Anthers dithecous, basifixed, introse and dehiscing longitudinally. 9. Gynoecium : Tricarpellary and syncarpous. Ovary superior, trilocular with two ovules in each locule on axile placentation. STYLE SIMPLE, slender with simple stigma. 10. Fruit : A loculicidal capsule. 11.Seed: Endospermous 12. Floral Formula :
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