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Gomphonema (gomf-owe-knee-ma), pennate diatom which is more expanded to one end and tapered to the other. With a central raphe and surface sculptings which are typical of diatoms, as well as the characteristic yellow brown chloroplasts with chlorophylls a and c. Phase contrast.
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Gomphonema (gomf-owe-knee-ma), pennate diatom which is more expanded to one end and tapered to the other. Here seen with a more typically shaped diatom. With a central raphe and surface sculptings which are typical of diatoms, as well as the characteristic yellow brown chloroplasts with chlorophylls a and c. Differential interference contrast.
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Colony of Gomphonema spec. on an stalk togehter with green alga Oedogonium and epibiontic Cocconeis. Scale bar indicates 25 µm. Sample from Lake Constance (Bodensee, Southern Germany) near Bodman. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.