Question

Arrangement of flowers on the floral axis of the plant is:

• A. Inflorescence
• B. Phyllotaxy
• C. Placentation
• D. Corymb

Answer 1

The correct option is A

Inflorescence

The correct option is A.

Explanation for the correct option:

1. The arrangement of flowers on the floral axis of a plant is called an inflorescence.
2. There are two main types of flowers:

• Cymose - In this type the main axis ends in the flower, its growth is usually limited and the flowers are born in the basipetal order.
• Racemose - The axis of the shoots grows indefinitely and the flowers are born sequentially the acropetally.

Explanation for the wrong option:
Option B:

1. Phyllotaxis is a pattern or arrangement of leaves on the stems or branches of a plant.
2. Alternate, opposite, and whorled are the three types of phyllotaxy.

Option C:

1. Placentation is the attachment of the ovule inside the ovary.
2. The ovary inside the flower ovary is connected by a funicular, part of the plant equivalent to an umbilical cord.

Option D:

1. In this inflorescence the main axis remains comparatively short and the lower flowers possess much longer stalks or pedicels than the upper ones so that all the flowers are brought more or less to the same level, e.g., in candytuft (Iberis amara).

Final answer: The arrangement of flowers on the floral axis of a plant is inflorescence.