Pistil:

Gynoecium represents the female com­ponent of a flower. It may consist of only one carpel (monocarpellary), two carpels (bicarpellary), or many carpels (multicarpellary). Each carpel represents a megasporophyll. Gynoecium is apocarpous,if the carpels are free, e.g., Michelia, Ranunculus.

When there are more than one, the pistils may be fused together (syncarpous) or may be free (apocarpous) . Each pistil has three parts the stigma, style and ovary. The stigma serves as a landing platform for pollen grains. Stigma is the terminal receptive part of the pistil which functions as landing platform for the pollen grains. It also determines the compatibility-incompatibility of the pollen grains. The style is the elongated slender part beneath the stigma.. Ovary is the basal swollen part of the pistil. It has an ovarian cavity with one or more chambers or locules and ovule bearing parenchymatous cushions called placentae (singular placenta). An ovary may have one (e.g., Wheat, Paddy, Mango) to several ovules (e.g., Papaya).