a_seed_is_a_seed_is_a_seed
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- 1stalk.jpg
- 1302×887
- 2016/03/28 13:04
- 141.8 KB
- 1stalk1.jpg
- 1302×887
- 2016/03/28 13:10
- 119.4 KB
- corksrew-1.jpg
- 800×800
- 2016/03/25 10:34
- 17.6 KB
- corksrew-2.jpg
- 800×800
- 2016/03/25 10:34
- 23.2 KB
- double-bag.jpg
- 1000×1230
- 2016/03/26 14:14
- 116.3 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
a_seed_is_a_seed_is_a_seed.txt · Last modified: 2016/01/13 17:48 by 127.0.0.1