Light micrograph of a pistil from a daisy (Bellis perennis) flower. The pistils are the female reproductive parts. Pollen grains (round), the male sex cell, land on the pistil's stigma (Y-shaped) and burrow down the style (stalk) to the ovary where they fertilise ovum (egg) cells, that then form seeds. Magnification: x100 when printed at 15cm wide.