Question

Nude flower means
A. Absence of androecium
B. Absence of gynoecium
C. Absence of calyx and corolla
D. Both (a) and (b)

Answer 1

Hint: Flower is that part of the plant or the female reproductive structure which will aid in the process of fertilization or reproduction by providing a mechanism of the union of male and the female gamete. Different flowers have different types of arrangement of petals and flowers on them. Here in the question they are asking about the meaning of nude flowers.

Complete answer:
We know that in plant calyx is the outermost whorl consisting of many units called sepals. Sepals are green in color and help in the enclosing of flowers in its bud stage. But they are not present or prominent in every species of plant. In a few species, they are also absent.
We also know that corolla is another whorl towards apex, and it is composed of small units called petals. Petals are generally very thin and they are also very soft and colorful because they need to attract the insects for the purpose of pollination. They are also not present in every species of plants.
So, in some flowers these two whorls: corolla and calyx are completely absent and this makes the reproductive whorl naked. Hence, they are called as nude flowers.

Therefore, the correct answer is option (c).

Note:
Inflorescence is the term that we used to describe the arrangement of flowers on the flower axis. And it is of two types: Racemose and Cymose. In racemose, the flowers are branched laterally on the axis of flowers. And in cymose, flowers are the terminating point of each floral axis. Collectively, calyx and corolla are called perianth.