Question

In fennel, coriander and carrots, the type of inflorescence found is
a. Verticillaster
b. Umbel
c. Spadix
d. Spike

Answer 1

Hint: Fennel, coriander, and carrots show a type of an inflorescence in which there are a number of short flower stalks called pedicles that spread out from a common point like an umbrella. It is a type of indeterminate inflorescence. It is a flat top rounded flower cluster.

Complete answer:
The arrangement of flowers on the floral axis is termed an inflorescence.
> Umbel: It is a style of inflorescence in which there are a number of short flower stalks called pedicles that spread out from a common point like umbrella ribs. It is a flat top rounded flower cluster in which the individual flower stalks arise from the same point and the youngest flowers are at the center. Umbels are found in the plants of Carrot, parsley, fennel, etc.

> Spadix: It is a type of spike inflorescence in which the small flowers are borne on the fleshy stem.

> Verticillaster: In this the flowers are arranged in a whorl. It is found in the plant of Tulsi.

> Spike: In this inflorescence, the flowers are borne directly on the stem instead of pedicels. It is a type of raceme. It can be seen in orchid plants.

Hence, the correct answer is option (B).

Note: Umbel inflorescence is compared with an umbrella. It is because the flowers spread out from the common point in the same way the ribs of an umbrella spread out. In this, the main axis was reduced. It is a type of racemose inflorescence and the flowers are very small.