MAREK MIS / SCIENCE PHOTO LIBRARY MAREK MIS / SCIENCE PHOTO LIBRARY
Desmid on red algae. Darkfield illuminated polarised light micrograph of a Micrasterias truncata desmid (green, round) on Batrachospermum sp. red algae. Desmids are a common group of freshwater single-celled algae that have intricate cell walls. Magnification: x100 when printed 10 centimetres wide.
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