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Common Alder Tree Pollen SEM

Common Alder Tree Pollen SEM

C014/2144

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Credit

POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY

Caption

Alder tree pollen. Coloured scanning electron micrograph (SEM) of a pollen grains from an alder tree (Alnus glutinosa). A pollen grain contains a male sex cell from a flowering plant. Millions of pollen grains are produced by each flowering plant. In the process of pollination, some of these pollen grains are transported from a flower's anthers to the female reproductive parts of a plant. This allows the female and male sex cells to combine in the formation of a seed. Alder trees are fast-growing deciduous trees found mostly in the temperate areas of the Northern Hemisphere. Magnification x6980 (x1725 at 10cm wide).

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