fieldnotes_biosymbiotics
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- algae-2.jpg
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- 2019/04/08 11:24
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- 2019/11/10 23:07
- 6.9 MB
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- 2019/06/13 11:25
- 233.8 KB
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- 2019/07/08 19:43
- 21.2 KB
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- 2019/10/11 11:33
- 60.6 KB
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- 2019/06/13 11:24
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- 2019/06/01 18:01
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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
fieldnotes_biosymbiotics.txt · Last modified: 2018/10/13 13:06 by ami