What are the tiny, sticky structures located on the top of the pistil called?

The pistil is the female reproductive organ in a flower. It consists of the stigma (the receptive part), style (a stalk connecting the stigma to the ovary), and the ovary (which contains the ovules, or potential seeds). The tiny, sticky structures located on the top of the pistil are called the stigma. The stigma serves as the receptive surface for pollen and is responsible for trapping and holding the pollen grains during the process of pollination.