Light micrograph of a Pleodorina indica (Gr. pleon, more & (Pan)dorina, named after Pandora, mythological woman), a freshwater green alga colony, showing a part of the globular colony with spherical biflagellate cells. Culture material of the Culture Collection of Algae at the University of Cologne. Microscopic contrast method: Differential interference contrast. Magnification 580x when printed at 10 centimetres width.