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Pediastrum granulatum.
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Portrait of Pediastrum duplex (Meyen, 1829 ).Collected from a freshwater pond near Boise, Idaho. Phase contrast.
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Scale bar indicates 50 µm. Sample from Lake Constance (Bodensee, Southern Germany) near Bodman. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Kirchneriella (keyrsh-ner-ell-a) in which cells occur individually (particularly in cultures) or in colonies 4-16, rarely more, cells within gelatinous sheaths. Cells oval or oblong cylindrically, curved or screw-shaped curved. Both ends of the cells are rounded. A single chloroplast covers the inside of the cell and contains a single pyrenoid. The nucleus is located centrally near the concavity of the cell. Common in plankton of fresh water in lakes, ponds and rivers. This slightly squashed colony of Kirchneriella lunaris was collected in the plankton from Lake Constance, Germany. Cells average 16 - 19 (microns long. Cells are bent or moon shaped. Differential interference contrast.
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Colony of green algae in thick mucilaginous envelope. Scale bar indicates 25 µm. Sample from sphagnum pond situated in the northern alpine region of Austria near Salzburg. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Portrait of the chlorellacean Tetraedron minimum var. minimum (A. Braun) Hansgirg. DIC.
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Malgrat de Mar, Catalonia, Spain
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Madrid, Madrid, Spain
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Scale bar indicates 25 m.Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Lardero, La Rioja, Spain
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Arcillo, Castille and Leon, Spain
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San Martin De Castaneda, Castille and Leon, Spain
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Luanco, Asturias, Spain
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El Rasillo, La Rioja, Spain
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Scale bar indicates 10 m.Sample from the Lake Constance (vicinity of Bodman). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Colony of green algae in thick mucilaginous envelope. Scale bar indicates 25 m.Sample from a small wetland near Schladming (northern alpine region of Austria near Salzburg). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Scale bar indicates 50 m.Sample from a small wetland near Schladming (northern alpine region of Austria near Salzburg). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Miranda do Douro, Bragana, Portugal
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Villar del Pedroso, Extremadura, Spain
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Fuente de Piedra, Andalusia, Spain
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Ribadelago, Castille and Leon, Spain
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Bruz, Brittany, France
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Scale bar indicates 25 m.Sample from the Domnental pond in Kronshagen near Kiel. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with MFT camera Olympus OM-D E-M5 MKII.For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Lardero, La Rioja, Spain