the flower of allium cepa is actinomorphic. give reason
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Answer:
Botanical description 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