Bellflower pollen grains,scanning electron micrograph (SEM). This bellflower (family Campanulaceae) is endemic to the island of Mauritius. Pollen grains are reproductive structures produced by the male parts of flowering plants. The grain has a spiked outer wall (exine),which may assist in its dispersal by improving its adherence to pollinating insects | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Oeggerli, Martin |
Taille de l’image : | 4825 px × 3619 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |