Two pollen grains of a Begonia flower. Begonia is one of the ten largest angiosperm genera. Terrestrial species in the wild are commonly upright-stemmed,rhizomatous,or tuberous. The plants are monoecious,with unisexual male and female flowers occurring separately on the same plant,the male containing numerous stamens,the female having a large inferior ovary and two to four branched or twisted stigmas. Most species come from tropical regions and therefore they and their hybrids require warm temperatures. Enhanced SEM. Image width: 51.3 micrometers. Magnification: 1,950x when image is printed 10 cm wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / SciMAT |
Bildgröße: | 3232 px × 2420 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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