Persian silk tree (Albizia julibrissin) pollen grains sticking to an anther,scanning electron micrograph (SEM). Pollen grains are reproductive structures produced by the male parts of flowering plants. The Persian silk tree and its relatives from the Acacia family have evolved complex pollen grains that are each made of many different parts and have a segmented appearance,as seen here | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Oeggerli, Martin |
Bildgröße: | 4827 px × 3620 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |