Hay fever sufferers can now see the face of their invisible enemy - thanks to these Scanning Electron Microscope images of pollen grains. A Swiss scientists named Martin Oeggerli, who uses the name Micronaut for his art, uses a Scanning Electron Microscope in his cellar to capture images of pollen grains. This picture shows a grain of willow pollen wedged between flower petals
Picture: MICRONAUT / CATERS NEWS
Grains of pollen come in all shapes and sizes. The large object in the centre of this image is pumpkin pollen; the tiny speck just below and to the right of it is forget-me-not pollen
Picture: MICRONAUT / CATERS
The grey granules are pollen from Viburnum tinus, or the snowball plant. One of them has started growing a tube that transfers the sperm to the ovule of a receptive ovary. The yellow granules are pollen from other species of plant
Picture: MICRONAUT / CATERS NEWS
The pollen from a mallow flower. Its spines help it cling to birds' feathers
Picture: MICRONAUT / CATERS NEWS
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The pollen of the silver leaf tree has a sticky coating, making it easier for animals to carry it around
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Grains of pollen on a geranium stigma
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Pollen from a lily. Up to half of the British population suffer from hay fever, which is caused by the immune system reacting to the pollen. Cells inside the nose and eyes release histamine and other chemicals when they come in contact with pollen, causing red eyes and a blocked nose
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Pollen from an alder (a tree of the birch family)
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Pollen from an acanthus
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Pollen from a Pistia (also known as water lettuce or water cabbage)
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Pollen from a bromelia
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Pine pollen
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Pollen from an Albizia (also known as the silk tree)
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Pollen from a Venus flytrap
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Pollen from a forget-me-not. This flower has one of the smallest known grains of pollen; just five one-thousandths of a millimetre in diameter
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A higher magnification of forget-me-not pollen on a petal
Picture: MICRONAUT / CATERS NEWS
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