Draw a neat diagram of LS of a flower.

Figure: L.S of a flower The androecium is the male reproductive whorl of the flower. Individual members of the whorl are referred to as stamens. Each stamen consists of a stalk called the filament and a sac-like structure called the anther. The function of the anther is to produce pollen grains that contain the male gametes.

Geitonogamy is a type of self-pollination in which pollination of plants takes place by transfer of pollen from one flower to the stigma of another flower of the same plant with the help of wind or a pollinating agent.