Digital Image Collection of Desmids
Desmids are microscopic single-celled green algae with a typical symmetrical appearance. The cells are divided in two halves ('semicells') that are mirror images of each other and they show a remarkable variation in shape and ornamentation. Because desmids thrive in clear and nutrient poor freshwater, they gain increasing attention from ecologists for assessing and monitoring wetland areas.

Cosmarium pyramidatum

Cosmarium pyramidatum Ralfs
Reference: Coesel & Van Geest 2009
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Front view
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Front view
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Front view
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Side view
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Side view
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Apical view
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All photos copyright: © 2009-2012 Alfred van Geest