Ash tree pollen

Ash tree pollen

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Credit: POWER AND SYRED/SCIENCE PHOTO LIBRARY

Caption: Ash tree pollen grains. Coloured scanning electron micrograph (SEM) of pollen grains from the Ash tree, Fraxinus excelsior. These wind dispersed pollen grains with their finely sculpted surface carry the male reproductive cells. They are released in vast numbers in late spring, and some inevitably land on the female parts of the tree and seeds are thus formed. The Ash tree is a common deciduous tree found in the temperate regions of the Northern Hemisphere. Magnification: x1,130 at 5x7cm size.

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Keywords: ash tree, botany, five, fraxinus excelsior, nature, plant, plants, pollen grains, reproduction, reproductive, scanning electron micrograph, sem, wind dispersed, windborne

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