Question

Polyadelphous stamens are found in
a. Cotton
b. Sunflower
c. Grain
d. Lemon

Answer 1

Hint: Flowers that have polyadelphous stamen have multiple stamens but their filaments are fused together into more than two bundles and have a cluster of anthers at the tip.

Complete step-by-step solution:
As the name suggests, poly means many and adelphous refers to the malegamete of plant. The plants in which the stamen or anthers are present in three or more than three bundles are known as polyadelphous stamen. This type of arrangement is commonly observed in citrus fruits like lemon.

Additional Information:
1. The androecium is the male reproductive part of the plant and is composed of stamens. Each stamen consists of a stalk or a filament and an anther. Anthers are usually bilobed. Each of these lobes has two chambers; these are the pollen-sacs. The cells of the pollen sacks are responsible for the production and storage of pollen grains.
2. A sterile stamen called staminode may be present in female flowers. Stamens of flowers may have varied morphology and be united with other parts of the flower such as petals or among themselves.
3. Stamens that are attached to petals are called epipetalous stamens; these are seen in brinjal. Stamens that are attached to the perianth of the flower are called epiphyllous; this is seen in the flowers of lily.
The stamens in a flower may have a free arrangement where they stand individually, this arrangement is called polyandrous stamens. Stamens can be united with each other to varying degrees. Monadelphous stamens are seen in china rose these stamens have a single bunch of filaments. Diadelphous stamens are found in pea, these have two or more bundles of the stamen. The polyadelphous stamen is seen in citrus; these have many small bunches of the fused stamen.

So, the correct answer is Lemon.

Note: Sometimes there is a variation in the length of the filaments of stamens seen in a single flower. This kind of variation is found in Salvia and mustard.