chitin
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Files in pollination:onlinepollendatabase
- 800wm.jpg
- 800×797
- 2023/09/13 09:01
- 155.3 KB
- b7860549-800px-wm.jpg
- 800×662
- 2023/09/13 09:02
- 151.9 KB
- b7860877-daisy_pollen_sem.jpg
- 800×611
- 2023/09/13 09:02
- 156.3 KB
- bionique-a381-plumbaginaceae-plumbago-auriculata-ou-capensis-3c60c.jpg
- 709×567
- 2023/09/13 09:02
- 94.9 KB
- hibiscuspollen500x.jpg
- 576×433
- 2023/09/13 09:02
- 90.4 KB
- hollyhock_pollengrain.jpg
- 737×691
- 2023/09/13 09:06
- 186.1 KB
- pollen-topology-glossary.pdf
- 2023/10/11 10:27
- 5.7 MB
- pollen02_4_.jpg
- 616×613
- 2023/09/13 09:02
- 136.7 KB
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
chitin.txt · Last modified: 2016/08/13 15:53 by ami