microsporófilos

Microsporophylls are leaf-like structures found in seed plants that bear microsporangia, the sites of microspore development. In seed plants, microspores develop into pollen grains. These structures are characteristic of male reproductive organs in gymnosperms and the stamens of angiosperms. In gymnosperms, microsporophylls are often arranged in cones, known as strobili. Each microsporophyll typically has two or more microsporangia on its underside. The overall structure of the male cone is determined by the arrangement and morphology of these microsporophylls. In angiosperms, the microsporophylls are highly modified and are collectively called the stamen. A stamen consists of a filament and an anther, with the anther containing the microsporangia (pollen sacs). The evolution of the stamen from microsporophylls represents a significant development in the reproductive biology of flowering plants, allowing for more efficient pollen dispersal and leading to the diversity of flowering plant reproductive structures. The term microsporophyll is more broadly applied to the homologous structures in gymnosperms, while "stamen" is specific to angiosperms.