Aqualegia pollen grains. SEM

Aqualegia pollen grains. SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Aqualegia pollen grains. Coloured scanning electron micrograph (SEM). A common perennial garden flower (common names grannies bonnet or columbine). Pollen grains are the male sex cells of a flowering plant. Their characteristic surface is used by botanists to recognise and classify plants. Pollen in plants is used for transferring male genetic material from the anther of a single flower to the stigma of another in cross-pollination. In a case of self-pollination, this process takes place from the anther of a flower to the stigma of the same flower. Magnification x 2200 at 10cm wide.

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Keywords: angiosperm, angiosperms, aqualegia, biological, biology, botanical, botany, cell, colored, coloured, erysimum, exine, false-colored, false-coloured, flora, gamete, gametes, grain, grains, male, nature, outer wall, pollen, pollination., reproduction, reproductive structure, scanning electron micrograph, scanning electron microscope, sem, sex cell, single, wildlife

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