Daisy seeds. Coloured scanning electron micrograph (SEM) of two seeds of a daisy plant (family Asteraceae,formerly Compositae). The seeds (bottom) are known as cypselas. The cypsela contains the embryo (fertilized ovum),that will germinate into a new plant. Around the edge of each cypsela is a fringe of feathery hairs known as the pappus. The function of the pappus is to aid seed dispersal by providing an increased surface area to the wind | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 1789 px × 2400 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |