50.0 MB (2.2 MB compressed)
4501 x 3883 pixels
38.1 x 32.8 cm ⏐ 15.0 x 12.9 in (300dpi)
EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY
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Sweet William pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from a sweet William (Dianthus barbatus) flower. Pollen grains are the male sex cells of a flowering plant. Magnification: x670 when printed at 10 centimetres wide.
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