Question

In an inflorescence where flowers are borne laterally in an acropetal succession, the position of the youngest floral bud in the floral axis shall be ______.

Options

• Proximal

• Distal

• Intercalary

• Anywhere

Answer 1

In an inflorescence where flowers are borne laterally in an acropetal succession, the position of the youngest floral bud in the floral axis shall be distal.

Explanation:

In the racemose type of inflorescences, the main axis continues to grow and the flowers are borne laterally in acropetal succession, i.e. youngest flower is present at the apex and oldest flower is present at the base. In racemose, inflorescence the growth of floral axis is unlimited or indefinite.

In the cymose type of inflorescence the main axis terminates in a flower, hence is limited in growth. The flowers are borne in a basipetal. order, i.e. youngest flower is present at the base and oldest flower is present at the apex. In cymose inflorescence oldest flower remains in the centre and youngest is towards the periphery. This type of arrangement is called centrifugal.