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Portrait of the chaetophoralean alga, Thamniochaete huberi (Gay,1893). The thallus, usually composed of a small number of ellipsoid to cylindrical cells, stands erect as an epiphyte on plants or other algae. The terminal cells and less often the cells between the terminal cells and lowermost cell bear long onion-shaped setae. each cell has one plastid and one pyrenoid. Collected from a freshwater pond near Boise,Idaho. July 2005.DIC.
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Draparnaldia (drap-arn-all-dee-a) is a green alga in which filaments are formed in whorls around a central but branching thread. Usually with mucus material surrounding the filaments. Differential interference contrast.
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Draparnaldia (drap-arn-all-dee-a) is a green alga in which filaments are formed in whorls around a central but branching thread. Usually with mucus material surrounding the filaments. This detail shows the fine filaments attached to the central thread. The cellulosic walls and thin peripheral band-shaped plastid evident in the central thread. Phase contrast.
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Draparnaldia (drap-arn-all-dee-a) is a green alga in which filaments are formed in whorls around a central but branching thread. Usually with mucus material surrounding the filaments. Dark ground illumination.
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Leptosiropsis (leapt-owe-sire-op-sis) torulosa, green alga with organic wall that is produced in layers. Phase contrast microscopy.
data on this strain.
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Leptosiropsis (leapt-owe-sire-op-sis) torulosa, green alga with organic wall that is produced in layers. Phase contrast microscopy.
data on this strain.
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Leptosiropsis (leapt-owe-sire-op-sis) torulosa, green alga with organic wall that is produced in layers. Phase contrast microscopy.
data on this strain.
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Leptosiropsis (leapt-owe-sire-op-sis) torulosa, green alga with organic wall that is produced in layers. Phase contrast microscopy.
data on this strain.
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Portrait (lateral view) of the chaetophoralean alga, Aphanochaete repens (Braun, 1849). A. repens is epiphytic on filamentous algae (in this case Oedegonium). The cells are cylindrical to cuboid, some bearing one long clear seta with a bulbous base. The cells arrange themselves in files with short branches along the long axis of their host algal filament. Collected from a freshwater pond near Boise, Idaho June 2004. DIC optics.
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Portrait (lateral view) of the chaetophoralean alga, Aphanochaete repens (Braun, 1849). A. repens is epiphytic on filamentous algae (in this case Oedegonium). The cells are cylindrical to cuboid, some bearing one clear seta with a bulbous base. The cells arrange themselves in files with short branches along the long axis of their host algal filament. Collected from a freshwater pond near Boise, Idaho June 2004. DIC optics.
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Portrait (lateral view) of the chaetophoralean alga, Aphanochaete polychaete (Fritsch, 1902). A. polychate is epiphytic on filamentous algae (in this case Oedegonium). The cells are cylindrical to cuboid, bearing more than one clear seta with a bulbous base (some cells here appear to have only one seta, the others being out of the focal plane of the image ). The multiple setae of A. polychaete differentiate it from A. repens which has only one seta per cell. The cells arrange themselves in files with short branches along the long axis of their host algal filament. Collected from a freshwater pond near Boise, Idaho June 2004. DIC optics.
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Portrait of the filamentous green alga, Chaetophora elegans (Roth; Agardh, 1812). Globular or lobulated colonies are embedded in a gelatinous matrix. The branching filaments terminate in tapered tips or long thin multicellular hair-like projections seen on the left in this image. The cells are cylindrical, containing a single parietal chloroplast and one to several pyrenoids. Branch filaments and axial filaments are similar in appearance. Collected from a freshwater pond near Boise, Idaho October 2004. DIC.
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Detail of the filamentous green alga, Chaetophora elegans (Roth; Agardh, 1812). Globular or lobulated colonies are embedded in a gelatinous matrix. The branching filaments terminate in tapered tips or long thin multicellular hair-like projections. The cells are cylindrical, containing a single parietal chloroplast and one to several pyrenoids. Branch filaments and axial filaments are similar in appearance. Collected from a freshwater pond near Boise, Idaho October 2004. DIC.