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Allergenic pollen grains, SEM

Allergenic pollen grains, SEM

C032/4353

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Credit

DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY

Caption

Allergenic pollen, coloured scanning electron micrograph (SEM). Ragweed (Ambrosia psilostachya, yellow, spiky), sagebrush (Artemisia tridentata, light brown), timothy grass (Phleum pratense, light green, larger), scotch broom (Cytisus scoparius, maroon), alder (Alnus glutinosa, dark green, smaller) and poplar (Populus sp. orange). Magnification: x200 when shortest axis printed at 25 millimetres.

Release details

Model release not required. Property release not required.

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