a pollen grain from the evening primrose (Oenothera), native to North and South America. Here the surface of the grain can be seen, with characteristic threads that hold the pollen in packages and probably help with the attachment to insects (pollinators).
Scanning electron microscope, magnification 3300x
Keywords: Color, Photography, Advertising / Marketing, Editorial, Education, Allergy / Immunology, Biology, Botany, Oncology
© eye of science