Question

In racemose type of inflorescence, the subtype that exhibits all the flowers in the inflorescence are brought to the same height due to varied lengths of the pedicels and this pattern is called as

• A. Capitulum or head
• B. Simple umbel
• C. Corymb
• D. Compound umbel

Answer 1

Answer: (C)

Corymb

There are two major types of inflorescence depending on whether the apex gets converted into a flower or continues to grow - racemose and cymose.

In the racemose type of inflorescence, the main axis does not terminate into a flower, but grows continuously and develops flowers on its lateral sides in acropetal succession. It is further subdivided as follows:

(i) With the main axis elongated, i.e., (a) raceme; (b) spike; (c) spikelets;

(d) catkin and (e) spadix.

(ii) With the main axis shortened, i.e., (i) corymb and (ii) umbel.

(iii) With the main axis flattened, i.e., capitulum or head.

In corymb type, the main axis remains comparatively short and the lower flowers possess much longer stalks or pedicels than the upper ones so that all the flowers are brought more or less to the same level.

So, the answer is C.