Cosmarium Corda ex Ralfs 1848

Dimension: Length 89–96 µm, width 48–55 µm.Occurrence: As an acidophilic species, it is widespread in small, shallow, water-filled depressions in bogs.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2023. Scale bar indicates 25 µm.Place name: Wetland Lauchseemoor, Fieberbrunn (Tyrol, Austria)  Latitude: 47.46954439     Longitude: 12.53826499Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bar indicates 25 µm.Place name: Wetland at the Pillersee (Tyrol, Austria)  Latitude: 47.531785     Longitude: 12.573095Microscope Zeiss Universal, camera Canon EOS 600D. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bar indicates 25 µm.Place name: Wetland Grünbichel near Fieberbrunn (Tyrol, Austria)  Latitude: 47.484885     Longitude: 12.546114Microscope Zeiss Universal, camera Canon EOS 600D. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2023. Scale bar indicates 25 µm.Remarks on the synonymization of Cosmarium simplicius and Cosmarium elegantissimum forma minus:The ornamentation of the cell surface of Cosmarium elegantissimum forma minus and the type variety (Cosmarium elegantissimum var. elegantissimum) is the same, namely double warts. In contrast, the warts of Cosmarium simplicius are described as single warts.The three specimens shown here fit the description of Cosmarium elegantissimum forma minus, but not that of Cosmarium simplicius!Place name: Wetland Paradieswiese near Kitzbühel (Tyrol, Austria)  Latitude: 47.47375067     Longitude: 12.37624884Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 25 µm.Two images.Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)  Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 25 µm.Two images.Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)  Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 10 µm.Three images.First:Synoptic representation of the cell surface (frontal view).Second:Optical cross-section showing nucleus, chloroplasts, assimilate globules and pyrenoids.Third:Synoptic representation of the cell surface (lateral view).Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon EOS 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 10 µm.Three images.First:Synoptic representation of the cell surface (frontal view).Second:Optical cross-section showing nucleus, chloroplasts, assimilate globules and pyrenoids.Third:Synoptic representation of the cell surface (lateral view).Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon EOS 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 10 µm.Three images.First:Synoptic representation of the cell surface (frontal view).Second:Optical cross-section showing nucleus, chloroplasts, assimilate globules and pyrenoids.Third:Synoptic representation of the cell surface (lateral view).Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon EOS 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bar indicates 10 µm.Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)  Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon 600D. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2018. Scale bar indicates 25 µm.Place name: Bog Kaltenhof near Kiel (Schleswig-Holstein, Germany)  Latitude: 54.42102744     Longitude: 10.07686615Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Description: The cells are a little longer than wide and wide, elliptical in shape. The longitudinal cell sides and the cell terminanations are rounded broadly elliptical. The central cut is deep and strongly extended towards the periphery. The cell wall is occupied with verrucae standing in vertical rows and offset from each other. Between the nipples there are little pores arranged in hexagonal patterns. In the chromatophores there are 2 pyrenoides per cell half.Dimension: Length 60–70 µm, width 50–60 µm.Occurrence: Occasionally in fens, alpine ponds and siltation zones of mountain lakes in mountainous areas up to 2600 m altitude, apparently absent in the lowlands.Note: Primarily it could be confused with the very similar Cosmarium reniforme, whose cells are, however, more compact (only about 1.04-1.07 times longer than wide) and the sides are more flatly curved when viewed from the top.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Description: The cells are a little longer than wide and wide, elliptical in shape. The longitudinal cell sides and the cell terminanations are rounded broadly elliptical. The central cut is deep and strongly extended towards the periphery. The cell wall is occupied with verrucae standing in vertical rows and offset from each other. Between the nipples there are little pores arranged in hexagonal patterns. In the chromatophores there are 2 pyrenoides per cell half.Dimension: Length 60–70 µm, width 50–60 µm.Occurrence: Occasionally in fens, alpine ponds and siltation zones of mountain lakes in mountainous areas up to 2600 m altitude, apparently absent in the lowlands.Note: Primarily it could be confused with the very similar Cosmarium reniforme, whose cells are, however, more compact (only about 1.04-1.07 times longer than wide) and the sides are more flatly curved when viewed from the top.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 09/2010. Scale bar indicates 25 µm.Place name: Bog Hegne Moor near Lake Constance (Germany)  Latitude: 47.718106     Longitude: 9.093974Microscope Zeiss Universal, camera Olympus C7070WZ. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2018. Scale bar indicates 25 µm.Place name: Bog Kaltenhof near Kiel (Schleswig-Holstein, Germany)  Latitude: 54.42102744     Longitude: 10.07686615Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF image.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Description: The cells are only little longer than wide. The cell halves form three lobes, the lateral lobes are unequally rounded off, whereby they appear gently rolling. The vertex lobes are slightly widened outwards, rounded off laterally and slightly concave in the center. The central cuts are deep and outward extended. At the basis of both cell halves there is a hump, which is covered with larger verrucae. The remaining cell wall is covered with smaller warts. The vertex view is oblong oval with one distinct surface bulg each at the sides.Dimension: Length 87–90 µm, width 70–75 µm.Occurrence: Well-known only from Greenland so far.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 10 µm.Two images.First:Synoptic representation of the cell surface.Second:Optical cross-section showing chloroplasts, assimilate globules and pyrenoids.Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)  Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon EOS 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 10 µm.Two images.First:Synoptic representation of the cell surface.Second:Optical cross-section showing chloroplasts, assimilate globules and pyrenoids.Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)  Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon EOS 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Dimension: Length 70 – 100 µm, width 50 – 90 µm.Occurrence: Acidophilic algae, rather rare.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Dimension: Length 70 – 100 µm, width 50 – 90 µm.Occurrence: Acidophilic algae, rather rare.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Dimension: Length (51)–60–77–(88) µm, width (43)–50–73 µm.Occurrence: Widespread in the shore areas of creeks, lakes and ponds, it sometimes also gets into the plankton.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Dimension: Length (51)–60–77–(88) µm, width (43)–50–73 µm.Occurrence: Widespread in the shore areas of creeks, lakes and ponds, it sometimes also gets into the plankton.Left: Original graphic by Prof. Lenzenweger.Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page

Sampling date 06/2013. Scale bars indicate 10 µm.Two images.Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)  Latitude: 47.47998695     Longitude: 12.5240922Microscope Zeiss Universal, camera Canon 600D. DOF images.© Wolfgang Bettighofer,images under Creative Commons License V 3.0 (CC BY-NC-SA).For permission to use of (high resolution) images please contact postmaster@protisten.de.For further information about the image, please click here: Link to protisten.de page