What female plant structure is composed of the stigma, style, ovary, and ovule?

The female plant structure composed of the stigma, style, ovary, and ovule is the pistil. This structure plays a central role in the reproductive process of flowering plants. The stigma is the receptive surface at the top of the pistil that captures pollen. The style is the elongated portion of the pistil that connects the stigma to the ovary, allowing for the passage of pollen tubes after fertilization. The ovary contains ovules, which develop into seeds upon fertilization.

Understanding this structure is fundamental in biology, particularly in plant reproductive systems, as it is key to the process of pollination and fertilization. The pistil is distinct from other plant structures such as stamens, which are the male reproductive parts, and do not include a stigma or style.