Question

what are the adaptation of anther filament and stigma in grass flower(diagrammatic)

Answer 1

The stigma, together with the style and ovary comprises the pistil, which in turn is part of thegynoecium or female reproductive organ of a plant. The stigma forms the distal portion of the style or stylodia. The stigma is composed of stigmatic papillae, the cells which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface

The stamen is comprised of the filament, which is the long, slender stalk, and the anther, which is at the top of the filament and is where pollen grains are produced