Wild strawberry stamens. Coloured scanning electron micrograph (SEM) of the stamens of the flower of a wild strawberry (Fragaria vesca),showing pollen grains (yellow). The stamens are male reproductive structures that consist of a filament topped by a pollen-bearing anther. They surround the female part of the flower,which consists of a style topped by a sticky tip (stigma),not seen. Pollen grains,the male sex cells of a flowering plant,land on the stigmas and burrow down through the styles to the ovary,where they fertilise the ova (eggs) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nishinaga, Susumu |
Bildgröße: | 3050 px × 4066 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |