Question

Inflorescence of which one of the following sets completely develop into composite fruits?

• A. Spike, corymb, hypanthodium
• B. Spike, female catkin, hypanthodium
• C. Umbel, catkin, spadix
• D. Female catkin, corymb, spike

Answer 1

The correct option is B Spike, female catkin, hypanthodium

Spike is the inflorescence in which the flowers come directly from the stem, e.g. Amaranthus species. It is a type of racemose inflorescence.

Catkin is the modified form of spike inflorescence with a long and drooping axis bearing unisexual flowers, e.g, oak.

Hypanthodium is the inflorescence in which the receptacle forms a cavity and the flowers are formed on the surface of the receptacle.

These all inflorescence completely develop into composite fruits.

So, the correct option is B.