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Chlamydomonas (clam-ee-doe-moan-ass), a solitary volvocid (flagellated green algal cell). Cell surrounded by a cellulosic wall. With plastid containing chlorophyll B giving the bright green colour, two similar flagella emerge from the anterior of the cell. Differential interference contrast.
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Portrait of Phacotus lenticularis, a volvocid flagellate. Lorica is composed of two shallow cup-shaped halves cemented together around the protoplast. Lorica surface is slightly rough and colored by minerals Two equal-length flagella protrude through an anterior pore in the lorica. Cup-shaped chloroplast. A stigma is present but not seen in these images. From a freshwater pond near Boise, Idaho. Phase contrast.
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Multi-layer image shows mucilaginous envelope, flagellae, structure of chloroplasts and in some cases the stigma. Scale bar indicates 25 m.Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. 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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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Chlamydomonas (clam-ee-doe-moan-ass), a solitary volvocid (flagellated green algal cell). Cell surrounded by a cellulosic wall and enclosed in mucilagenous sheath - cells in this form were inactive as if encysted. Differential interference contrast.
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Pteromonas, a volvocid flagellate. Ovoid protoplast occupies a hyaline lorica composed of two parts that meet peripherally appearing as flattened wings in optical cross-section. Two equal flagella exit through small canals. This species has a large cup-shape chloroplast and one posterior pyrenoid. The eyespot is not well seen. An anterior contractile vacuole is seen in this image. Asexual reproduction occurs within the lorica the two halves of which are forced apart by the accumulation of gelatinous material releasing the daughter cells. From rainwater pool near Boise, Idaho. Brightfield illumination.
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Mahide, Castilla y Len, Espaa
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Chlamydomonas (clam-ee-doe-moan-ass), a solitary volvocid (flagellated green algal cell). Cell surrounded by a cellulosic wall. With plastid containing chlorophyll B giving the bright green colour, two similar flagella emerge from the anterior of the cell. Phase contrast.
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Pteromonas, a volvocid flagellate. Ovoid protoplast occupies a hyaline lorica composed of two parts that meet peripherally appearing as flattened wings in optical cross-section. Two equal flagella exit through small canals. This species has a large cup-shape chloroplast and one posterior pyrenoid. The eyespot is not well seen. An anterior contractile vacuole is seen in this image. Asexual reproduction occurs within the lorica the two halves of which are forced apart by the accumulation of gelatinous material releasing the daughter cells. From rainwater pool near Boise, Idaho. Phase contrast illumination.
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Cuelgamuros, Madrid, Spain
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Pteromonas, a volvocid flagellate. Ovoid protoplast occupies a hyaline lorica composed of two parts that meet peripherally appearing as flattened wings in optical cross-section. Two equal flagella exit through small canals. This species has a large cup-shape chloroplast and one posterior pyrenoid. The eyespot is not well seen. An anterior contractile vacuole is seen in this image. Asexual reproduction occurs within the lorica the two halves of which are forced apart by the accumulation of gelatinous material releasing the daughter cells. From rainwater pool near Boise, Idaho. Phase contrast illumination.
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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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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Chlorogonium, a small volvocid flagellate, with two equal anterior flagella. The cell body is fusiform. Chloroplasts are irregular. A stigma may be present. From standing rainwater pool near Boise, Idaho. Nomarski illumination.
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All Biocode files are based on field identifications to the best of the researcher’s ability at the time.
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Chlorogonium, a volvocid green alga (Chlorophyta), the cell is spindle shaped with two flagella inserting at the anterior apex of the cell. The flagella beat with a breast-stroke like motion. This detail shows the anterior stigma or eyespot. Differential interference contrast optics.
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Chlorogonium, a volvocid green alga (Chlorophyta), the cell is spindle shaped with two flagella inserting at the anterior apex of the cell. The flagella beat with a breast-stroke like motion.
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Portrait of the volvocid flagellate, Chlorogonium elongatum (Dangeard 1899). Collected from a freshwater pond near Boise, Idaho March 2005. DIC.
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Portrait of the volvocid flagellate Chlorogonium elongatum (Dangeard 1899). Collected from a freshwater pond near Boise, Idaho March 2005. DIC
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