GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Light micrograph of Gonium sp., a freshwater green alga forming colonies. Culture material of the Culture Collection of Algae at the University of Cologne. Prepared with Indian ink to show the mucilage surrounding the cells. Microscopic contrast method: Differential interference contrast. Magnification 900x when printed at 10 centimetres width.
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