Pine pollen grains. Light micrograph of a section through winged pollen grains (microspores) from a pine (Pinus sp.) tree. The wings (light blue) are

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Pine pollen grains. Light micrograph of a section through winged pollen grains (microspores) from a pine (Pinus sp.) tree. The wings (light blue) are like two air balloons that keep the grains in the air currents and enable them to be spread over a greater distance. Magnification: x138 when printed 10 centimetres wide.

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Size: 5462px × 3216px
Photo credit: © DR KEITH WHEELER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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