Capitulum inflorescence is seen inA) CruciferaeB) LiliaceaeC) CompositaeD) Solanaceae

The correct answer is (C) Compositae
The capitulum is a type of inflorescence, also known as a head, in which the flowers are closely packed together on a common receptacle. This type of inflorescence is characteristic of the Compositae (also called Asteraceae) family.
1. Capitulum in Compositae (Asteraceae):
• The Compositae family, which includes plants like sunflowers, daisies, and marigolds, has a unique flower arrangement called a capitulum.
• In this inflorescence type, the individual flowers (also called florets) are arranged in a dense cluster on a single receptacle.
• The capitulum usually consists of two types of flowers:
o Ray florets (petal-like flowers) on the outer edge.
o Disc florets (tubular flowers) in the center.
• Example: Sunflower (Helianthus annuus), where each "flower" is actually a collection of many small florets arranged in a head.
2. Why Other Options Are Incorrect:
• (A) Cruciferae (now Brassicaceae):
The Brassicaceae family, which includes mustard and cabbage, typically has a racemose or corymbose inflorescence, not a capitulum.
• (B) Liliaceae:
The Liliaceae family, which includes lilies and tulips, typically has simple or compound racemes or umbels, not a capitulum.
• (D) Solanaceae:
The Solanaceae family, which includes tomatoes, potatoes, and eggplants, has inflorescences such as cyme or raceme, not a capitulum.
The capitulum inflorescence, a dense cluster of flowers on a common receptacle, is characteristic of the Compositae (Asteraceae) family. Therefore, the correct answer is (C) Compositae.