GERD GUENTHER / SCIENCE PHOTO LIBRARY GERD GUENTHER / SCIENCE PHOTO LIBRARY
Light micrograph of two young colonies of Coleochaete (Gr. Gr. Cocconeis sp. diatoms on an "Aufwuchs"-slide, exposed 6 days in a garden pond in the botanic garden of Cologne. Coleochaete forms discoid colonies growing on water plant surfaces. Microscopic contrast method : Differential interference contrast. Magnification 380x when printed at 10 centimetres wide.
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