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Craticula cuspidata is regarded as the senior synonym of Navicula cuspidata, under which name this asset was submitted. The change of name has been made by the micro*scope team.
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This image of Amphipleura pellucida was taken using an Olympus SPlanapo 100X/1.40, Zeiss 1.40 achro plan condenser, DIC, Wratten 47 deep blue filter, The Imaging Source 1024X768 digital camera, mosaic of 4 images (every image is an average of 32 frames in order to reduce noise). Software Panorama Maker 3.0 and Photoshop.
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Pinnularia (pin-you-lair-ee-a). a pennate diatom, found either individually or in clusters as here. As with other diatoms with a siliceous cell wall. Nucleus central. Phase contrast.
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Pinnularia (pin-you-lair-ee-a). a pennate diatom, found either individually or in clusters as here. As with other diatoms with a siliceous cell wall. Nucleus central. Differential interference contrast.
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Pinnularia (pin-you-lair-ee-a) a pennate diatom, the upper cell is the empty siliceous wall or frustule, the lower cell is a living cell with brown-ish chloroplast and central nucleus. Diatoms are mostly identified and classified using the markings on the surface of the frustule. The central line is the raphe, and is associated with the gliding movements of the cell. Differential interference contrast. Material from Nymph Lake, thermal sites within Yellowstone National Park, photograph by Kathy Sheehan and David Patterson.
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Pinnularia (pin-you-lair-ee-a), large pennate diatom. Margins reveal strengthening struts. The plastid has a browny-green colour. Phase contrast.
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The intricate frustule of the diatom Pinnularia. Frustules have ridges, grooves, and pores that are useful for identification of different diatoms. The two grooves in the center of the cell form the raphe and the raphe is used for propelling the diatom.