An electron microscope image, colorized, shows different structures of pollen grains, including sunflower, morning glory and primrose. Dartmouth Electron Microscope Facility If pollen allergies are ...
Smithsonian researcher Ingrid Romero studies fossil pollen to reconstruct ancient climates and predict future changes Erin Wunderlich Researcher Ingrid Romero holds a case full of pollen slides at the ...
The behavior of pollen grains within the airspace around Ephedra trifurca is described. Vectoral analyses of pollen grains moving around stems and ovules indicate a complex pattern of directional and ...
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