Pollen – for many people rather an irritant across spring, summer and autumn when trees and flowers are in bloom. Individual pollen grains are between a few µm (micrometre, which is one thousandth of an mm) and >130 µm in diameter. This size range is impossible to see with the naked eye unless the pollen grains are clumped together, or when pollen is dispersed as powder into the air on a dry su ...[Read More]
The world about pollen
Palynomorphs under the microscope: Pityosporites (pine, left) and Inaperturopollenites hiatus (taxadiaceae or cypress, right). Scale bar = 25 micrometres.
