The purpose of the stigma is transportation. It transports the pollen to the ovum so that it is able to be fertilized.
The stigma that is found on a dragonflies wings is near the end of the wing. It is said that this helps with flexibility and stops fatigue for the dragonfly.
The part you are referring to is called the style. Its purpose is to elevate the stigma so that it is easier for pollen to reach and fertilize the ovules in the ovary.
Stigma
Stigma is a mark of disgrace or infamy.
stigma
stigma
The sticky part of the pistil is called the stigma. It is the receptive surface where pollen grains land and germinate to begin the process of fertilization.
it holds the stigma in place
Pollen is collected in the stigma.
The stigma catches pollen and the pollen grain germinate on the stigma. The stigma is sticky to catch and trap pollen with various hairs or flaps.
The plural of stigma is stigmas or (especially in a religious sense) stigmata.
In a flower carpel, the stigma is the terminal portion that has no epidermis and is fitted to receive pollen.