The pistil or carpel is the female part of a flower. A pistil is made up of three parts: stigma, style and ovary. The top part of a pistil is called stigma. Stigma is very sticky so that pollens can stick to it. The middle part of a pistil is called style. It is a tube which connects stigma to ovary. The swollen part at the bottom of pistil is called ovary. The ovary contain tiny egg-like structures called ovules.