Question

Capitulum inflorescence is seen in

• A. Cruciferae
• B. Liliaceae
• C. Compositae
• D. Solanaceae

Answer 1

The correct option is C Compositae

Inflorescence is the arrangement of flower on the floral axis. There are two types of inflorescence as racemose and cymose. In racemose type, the main axis is unlimited in growth. It never terminates into a flower. There are many sub-types of racemose inflorescence. Head or capitulum also belongs to racemose type of inflorescence. It possess a flattened, convex main axis called as receptacle. This receptacle bears flowers in centripetal order. The whole inflorescence is surrounded by a whorl of bracts.

In cymose type, the main axis shows limited growth and terminates into a flower.

Cruciferae shows receme type of inflorescence in which pedicellate flowers borne in acropetal succession i.e. older flowers at base and younger ones at apex.
Liliaceae shows panicled raceme type of inflorescence. In this type the raceme of racemes is present.

Solanaceae family shows many types of inflorescence as solitary or helicoid cyme.

In Solitary type of inflorescence, highest degree of reduction is seen in this type of cymose inflorescence. The terminal bud forms a single flower.

In helicoid cyme type of inflorescence, the axis terminates into flower and a lateral branch arise successively on the same side.

Compositae shows head or capitulum type of inflorescence.
Therefore, the correct answer is option C.