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Cymose head shows
Option: 1
Centrifugally arranged florets

Option: 2
Centripetally arranged florets

Option: 3
Basipetally arranged florets

Option: 4
Acropetally arranged florets

Answers (1)

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Cymose Inflorescence and Its Types

Cymose Inflorescence:

This type of inflorescence is also known as determinate or definite inflorescence.
Each peduncle or axis, whether main or axillary terminates into a flower.
Younger flowers arise from the base of the older ones.
Hence, the arrangement of flowers is in basipetal succession, that is, the older ones appear at the top and the younger ones at the base.

Cymose Head:

The peduncle is flattened.
Many sessile and centrifugally arranged flowers are seen around the peduncle.
The difference between racemose head and the cymose head inflorescence is of the arrangement of florets.
The arrangement is centripetal in the racemose head while it is centrifugal in the cymose head.
For example, Acacia

Cymose head shows centrifugally arranged florets with older florets towards centre and younger towards periphery.

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