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Caption: Chinese hibiscus pollen. Computer illustration of pollen grains on the anther of a Chinese hibiscus (Hibiscus rosa-sinensis) flower. Pollen grains are the male gametes (sex cells) of a plant. The grain has a highly sculptured outer wall (exine), which may assist in its dispersal by improving its adherence to pollinating insects. The characteristic surface of a pollen grain is used by botanists to recognise and classify plants. Pollen grains are microscopic, usually about 15 to 100 microns across, and just a pinch of pollen powder contains thousands and thousands of grains. Hibiscus belongs to hypoallergenic plants usually not causing seasonal allergy.

Image WebID:  TPG29171213(RF) 
Same folder images:  科學圖1678張
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Comp :   2290X1526 (10.00 M)  
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  • 3 dimensional
  • 3d
  • angiosperm
  • angiosperms
  • anther
  • artwork
  • biological
  • biology
  • botanical
  • botany
  • china rose
  • chinese hibiscus
  • coloured
  • digitally generated
  • dispersal
  • exine
  • false-colour
  • false-coloured
  • flora
  • flowering plants
  • gamete
  • grain
  • grains
  • hibiscus rosa sinensis
  • hibiscus rosa-sinensis
  • illustration
  • male
  • malvaceae
  • nature
  • no-one
  • nobody
  • one
  • outer wall
  • parts
  • plant
  • pollen
  • pollen grain
  • pollen grains
  • reproduction
  • reproductive
  • reproductive part
  • sculpted
  • sex cell
  • shoe flower
  • single
  • spike
  • spikes
  • spikey
  • spiky
  • three dimensional
  • hypoallergenic
  • botanical
  • nature
  • flora
  • cgi
  • 1
  • single

  • 1
  • 3 dimensional
  • 3d
  • angiosperm
  • angiosperms
  • anther
  • artwork
  • biological
  • biology
  • botanical
  • botanical
  • botany
  • cgi
  • china rose
  • chinese hibiscus
  • coloured
  • digitally generated
  • dispersal
  • exine
  • false-colour
  • false-coloured
  • flora
  • flora
  • flowering plants
  • gamete
  • grain
  • grains
  • hibiscus rosa sinensis
  • hibiscus rosa-sinensis
  • hypoallergenic
  • illustration
  • male
  • malvaceae
  • nature
  • nature
  • no-one
  • nobody
  • one
  • outer wall
  • parts
  • plant
  • pollen
  • pollen grain
  • pollen grains
  • reproduction
  • reproductive
  • reproductive part
  • sculpted
  • sex cell
  • shoe flower
  • single
  • single
  • spike
  • spikes
  • spikey
  • spiky
  • three dimensional

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