KARL GAFF / SCIENCE PHOTO LIBRARY KARL GAFF / SCIENCE PHOTO LIBRARY
Light micrograph of the central region of a foxglove (Digitalis purpurea) flower. At centre are the female reproductive parts of the plant (the carpal). The long style is topped by the stigma. Surrounding the carpal are the male stamens. Each stamen consists of a filament (stalk) and an anther (cream) that contains pollen grains (white). The purple petal is in the background. Magnification: x 2.5 when printed at 10 centimetres tall.
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