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Catkin inflorescence is found in
Option: 1
Gulmohar

Option: 2
Mustard

Option: 3
Radish

Option: 4
None of these

Answers (1)

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Racemose Inflorescence and Its Types - Category A

Racemose Inflorescence:

It is also called an indeterminate or indefinite inflorescence.
The main axis continues to grow and never ends in a flower.
The flowers occur acropetally, that is, oldest flower towards the base and gradually the youngest flower at the apex.
The flowers can also occur centripetally, that is, the oldest flower towards the margin and the youngest one at the center.

Category A: Main axis elongated

1. Raceme:

The main axis grows indefinitely
Flowers are pedicellate and are borne directly on the main axis
Flowers are borne acropetally.
Examples - Mustard, Caesalpinia
Some plants produce complex raceme called raceme of racemes or panicle.
The maix axis produces branches and flowers are borne on these branches.
Examples - Gulmohar, Radish

Catkin:

The main axis is elongated.
It is a specialized spike.
The axis is long and pendulous.
The pendulous axis bears clusters of sessile flowers.
Flowers are unisexual.
Examples - Mulberry, Acalypha, Populus

Hence, the correct option is (d) - None of these.

Posted by

Irshad Anwar

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