Question

Umbel Inflorescence is found in:-
A. Musa
B. Colocasia
C. Coriandrum
D. Helianthus

Answer 1

Hint: Inflorescence in a flowering plant refers to the arrangement of flower or cluster of flowers in a branch or several branches. Inflorescence are of different types depending upon the timing of flowering and arrangement of flowers on the main axis etc.

Complete answer:
Umbel Inflorescence refers to the type of Inflorescence that consists of a number of short flower stalks originating from a single point and giving it an umbrella shape. Inflorescence is of two types:- Racemose and Cymose Inflorescence. And umbel Inflorescence is a subtype of Racemose type. Umbelliferae family including carrot, hogweed, parsley generally has umbel Inflorescence. The other plants having this type of Inflorescence is Coriandrum, Onion, Fatsia, Aralia etc.

Hence, the correct answer is option (C).

Additional information:
The Racemose Inflorescence is also called Indeterminate Inflorescence. The Racemose Inflorescence is again divided into several types such as Raceme, Umbel, Spike, Corymb, Spadix, and flower head. A raceme is unbranched, Indeterminate Inflorescence having pedicellate flowers along the axis. A spike is a type of Inflorescence where the flowers don’t have peduncle. A corymb is one where the outer pedicel is longer than the inner pedicel. A spadix is a spike of flowers densely organized around it, enclosed or accompanied by a highly specialised bract called as spathe. It is characteristic of the family Araceae. A flower head or capitulum is a very contracted raceme in which the single sessile flowers share are borne on an enlarged stem. It is characteristic of Dipsacaceae.

Note: Some species have flower and inflorescence intermediates. In these cases, some reproductive structures of certain flowers appear as transitional between inflorescences and flowers, making it tough to accurately distinguish and determine the structure as one or the other.