Question

Capitulum inflorescence occurs in?
a. Salvia
b. Euphorbia
c. Marigold
d. Jasmine

Answer 1

Hint: Capitulum is a type of inflorescence in which florets are closely packed. Flowers have no stalks and arise on a flattened tree. Ray florets are zygomorphic while disc florets are bisexual and actinomorphic. This type of fluorescence is observed in sunflowers, dahlias, marigolds, etc.

Complete answer:
Capitula are typical compositae. These have flattened axis and Capitulum flattened axis and Capitulum is surrounded or subtended by protective structure that is involucres of bract giving it the appearance of a single flower. Plants family asteraceae includes daisy and dandelion. Flattened shoot, small stalk less flowers surrounded by a ring to form bracts. They have highly compressed inflorescence.

It is among the largest families of plants with more than 23,000 species that occupy all the continents except Antarctica. Pseudanthium, a structure that resembles a single large flower, is included in Capitulum. Anthers united in a tube, and inferior ovary position diagnosed in this family. Saliva includes herbs, shrubs and is generally perennial and aromatic. Herbaceous perennial includes species of saliva indica. Euphorbia is a very large and diverse genus; it is commonly called a spurge. The receptacle is flat and florets are bracteates in marigold.

From the above information we can say that Capitulum type of inflorescence is found in marigolds.
Hence, the correct answer is option (C).

Note: Asteraceae also contain other sensitizers, such as polyacetylenes, and thiophenes. To detect contact allergy to compositae lactone mixture is used other types of inflorescence observed in plants are solitary flowers, racemose inflorescence, cymose inflorescence, mixed inflorescence, special inflorescence.