Pine pollen. Coloured scanning electron micrograph (SEM) of Scots Pine (Pinus sylvestris) pollen grains. Each pollen grain consists of a base (coloured brown) with two air-filled,wing-like bladders (coloured green),which are extensions of the pollen grain's wall. These wings help the wind- dispersed pollen to float on air. The pollen is produced by male pine cones high in the tree,and may have to reach female cones a great distance away. Wind-dispersed pollen is made in massive quantities. Magnification: x2010 at 10x8 inch size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Power And Syred |
Taille de l’image : | 4925 px × 3720 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |