Scanning electron micrograph (SEM) of a passion flower (Passiflora sp.) petal with a cluster of adhered pollen grains. Pollen tubes are emerging from the grains. Magnification: x144 when printed at 10 centimetres wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / KARL GAFF |
Bildgröße: | 2805 px × 3752 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |