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- proboscis.jpg
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- 2016/01/13 17:48
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- sem-prep_01.jpg
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- 2016/01/13 17:48
- 118.2 KB
- sem-prep_02.jpg
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- 65.1 KB
- sem-prep_05.jpg
- 1000×750
- 2016/01/13 17:48
- 74.6 KB
- sem-prep_06.jpg
- 1000×1333
- 2016/01/13 17:48
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- sem-prep_07.jpg
- 1000×750
- 2016/01/13 17:48
- 164.6 KB
- sem-prep_08.jpg
- 1000×750
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- 102.7 KB
- sem-prep_09.jpg
- 1000×1063
- 2016/01/13 17:48
- 183 KB
- sem-prep_10.jpg
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- 2016/01/13 17:48
- 166.5 KB
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- swammerdam_bee.eye.gif
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- 2016/01/13 17:48
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File
- Title:
- Hollyhock pollen
- Date:
- 2023/09/13 09:01
- Filename:
- 800wm.jpg
- Caption:
- Pollen. Coloured scanning electron micrograph (SEM) of a pollen grain of the garden hollyhock, Althaea rosa. Its outer wall (exine) has a spiky structure. When the pollen grain, containing the male gametes, lands on the stigma of a flower of the same species, it germinates. A pollen tube grows from the pollen grain & down to the flower's ovaries. The ovules are then fertilised & a seed is formed. Magnification: x200 at 6x6cm size.
- Photographer:
- Science Photo Library
- Copyright:
- DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
- Format:
- JPEG
- Size:
- 155KB
- Width:
- 800
- Height:
- 797
- Keywords:
- hollyhock, pollen, althaea, rosa, garden, hollyhock, pollen, of, botany, plant, sem, coloured, scanning, electron, micrograph, grain, allergen, allergy, cause, sneezing, causing, sneeze, nature, plants, reproduction, reproductive, pollen
- References for:
- pollinations
start.txt · Last modified: 2024/05/30 06:37 by ami