Pistil

Pistil: The Female Reproductive Organ of Flower

Pistil is also known as carpel and it consists of the following 3 parts:

Stigma: 

This is the uppermost part of the carpel which receives the pollen grains from anther. Stigma has a sticky surface so that the pollen grains can attach to it.

Style:

Style is the tubular middle portion of the carpel which is responsible for transferring the male gametes of pollen grains to the ovary.

Ovary:

It is a swollen structure present below style. Ovules which have the female gametes are produced and stored inside the ovary. The ovary contains many ovules. 

Note: There is a single female gamete present inside each ovule . The fertilization of male and female gametes takes place inside the ovule.