DIFFERENCE BETWEEN DISC FLORET AND RAY FLORET
The inflorescence of flowers belonging to Family Asteraceae (Compositaceae) is called a floret. It is seen in Helianthus annus (Sunflower).
Disc floret:
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Located in the centre of head, bracteate, actinomorphic. bisexual, tubular, pentamerous.
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Calyx: Absent or pappus
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Corolla: Five petals, gamopetalous, tubular
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Androecium: Five stamens, epipetalous, syngenesious, filaments free.
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Gynoecium: Bicarpellary, syncarpous, unilocular, inferior ovary, basal placentation, bifid stigma
Ray floret:
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Located towards the periphery of head, bracteate, sessile, zygomorphic, ligulate.
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Calyx: Absent or hairy pappus, persistent
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Corolla: Five petals, gamopetalous
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Androecium: Absent
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Gynoecium: Bicarpellary, syncarpous, unilocular, inferior ovary, basal placentation, stigma branched.
