Question

Monothecous stamens are found in
A. Sunflower
B. Pea flower
C. Shoe flower
D. Mustard

Answer 1

Hint: In order to solve this question we need to know about the male reproductive organ in the plants that is stamen. Also, the knowledge of classification of anthers will prove to be useful in tackling such kinds of questions.

Complete answer:
Stamen is the male reproductive structure of the flower. It consists of anther and filament. The anther can be monothecous or dithecous.
Stamen consists mainly of two parts that is anther and filament. Filament is stalk which is slender and tall in shape. The filament bears an anther distally. In general the anther can be classified as lobes. The anther can have one lobe or it can also have two lobes. When it has only one lobe then it is called monothecous, while when it has two lobes it is called dithecous as the name suggests.
Inside each of lobes of the anther, there are two pollen sacs which are called microsporangia. The monothecous anthers consist of two microsporangia while dithecous anthers consist of tetra microsporangia.
The shoe flower is the other name for Hibiscus rosa-sinensis or China rose. It belongs to the family of Malvaceae. The anthers of family Malvaceae are called monothecous.

Thus, the correct answer to the question is (c) Shoe flower.

Note: The structure and location of male and female reproductive structure should be noted to answer such questions. In hibiscus the filaments on which the anthers sit fuse with the style. Style is the part of the female reproductive structure of the flower.