Closterium Nitzsch ex Ralfs 1848

Sampling date 02/2017. Scale bar indicates 25 µm.Place name: Lake Fuhlensee near Schilksee (Kiel, Germany)  Latitude: 54.43136338     Longitude: 10.16243935Microscope 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 06/2024. Scale bars indicate 100 µm (in the slide changer), 50 µm (fifth image).Five images, four of them in a slide changer.First:Synoptic representation of the cell surface. Four ribs of the stellate chloroplasts can be seen.Second:Optical cross-section depicting 2 ribs of the stellate chloroplasts.Third:A further optical cross-section.Fourth:The focus of the optical cross-section is on the cell nucleus.Fifth:Detail: striated cell wall. The bars in the enlarged inset mark 10 µm. The striation has a density of 10 lines/10 µm.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 at the Pillersee (Tyrol, Austria)Latitude: 47.531785     Longitude: 12.573095Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. 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 06/2024. Scale bars indicate 100 µm (in the slide changer), 50 µm (fifth image).Five images, four of them in a slide changer.First:Synoptic representation of the cell surface. Four ribs of the stellate chloroplasts can be seen.Second:Optical cross-section depicting 2 ribs of the stellate chloroplasts.Third:A further optical cross-section.Fourth:The focus of the optical cross-section is on the cell nucleus.Fifth:Detail: striated cell wall. The bars in the enlarged inset mark 10 µm. The striation has a density of 10 lines/10 µm.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 at the Pillersee (Tyrol, Austria)Latitude: 47.531785     Longitude: 12.573095Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. 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 06/2024. Scale bars indicate 100 µm (in the slide changer), 50 µm (fifth image).Five images, four of them in a slide changer.First:Synoptic representation of the cell surface. Four ribs of the stellate chloroplasts can be seen.Second:Optical cross-section depicting 2 ribs of the stellate chloroplasts.Third:A further optical cross-section.Fourth:The focus of the optical cross-section is on the cell nucleus.Fifth:Detail: striated cell wall. The bars in the enlarged inset mark 10 µm. The striation has a density of 10 lines/10 µm.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 at the Pillersee (Tyrol, Austria)Latitude: 47.531785     Longitude: 12.573095Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. 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 06/2024. Scale bars indicate 100 µm (in the slide changer), 50 µm (fifth image).Five images, four of them in a slide changer.First:Synoptic representation of the cell surface. Four ribs of the stellate chloroplasts can be seen.Second:Optical cross-section depicting 2 ribs of the stellate chloroplasts.Third:A further optical cross-section.Fourth:The focus of the optical cross-section is on the cell nucleus.Fifth:Detail: striated cell wall. The bars in the enlarged inset mark 10 µm. The striation has a density of 10 lines/10 µm.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 at the Pillersee (Tyrol, Austria)Latitude: 47.531785     Longitude: 12.573095Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. 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 06/2024. Scale bars indicate 100 µm (in the slide changer), 50 µm (fifth image).Five images, four of them in a slide changer.First:Synoptic representation of the cell surface. Four ribs of the stellate chloroplasts can be seen.Second:Optical cross-section depicting 2 ribs of the stellate chloroplasts.Third:A further optical cross-section.Fourth:The focus of the optical cross-section is on the cell nucleus.Fifth:Detail: striated cell wall. The bars in the enlarged inset mark 10 µm. The striation has a density of 10 lines/10 µm.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 at the Pillersee (Tyrol, Austria)Latitude: 47.531785     Longitude: 12.573095Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. 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 10/2019. Scale bars indicate 50 µm.Three images.First:Snoptic representation of the cell wall. The mucilage for locomotion can be seen at the right cell tip.Second and third:Two optical cross-section through the cell.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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria)Latitude: 47.30234117     Longitude: 12.41751194Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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 10/2019. Scale bars indicate 50 µm.Three images.First:Snoptic representation of the cell wall. The mucilage for locomotion can be seen at the right cell tip.Second and third:Two optical cross-section through the cell.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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria)Latitude: 47.30234117     Longitude: 12.41751194Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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 10/2019. Scale bars indicate 50 µm.Three images.First:Snoptic representation of the cell wall. The mucilage for locomotion can be seen at the right cell tip.Second and third:Two optical cross-section through the cell.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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria)Latitude: 47.30234117     Longitude: 12.41751194Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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

Description: The cells are (9)–10–14–(16) times longer than they are wide, evenly curved, and continuously narrow towards the slightly truncated cell ends, in which a small button-like thickening (end pore) is usually also visible. The cell wall is smooth, and there are no girdle bands. Distinguished from similarly curved closteria by its extremely slender shape.Dimension: Length (160)–180–300–(380) µm, width (15)–20–30–(40) µm.Occurrence:  Commonly found in weakly to moderately acidic small water bodies of transitional mires and the like.Note: The image on the right shows the strongly curved variety arcuatum.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 (9)–10–14–(16) times longer than they are wide, evenly curved, and continuously narrow towards the slightly truncated cell ends, in which a small button-like thickening (end pore) is usually also visible. The cell wall is smooth, and there are no girdle bands. Distinguished from similarly curved closteria by its extremely slender shape.Dimension: Length (160)–180–300–(380) µm, width (15)–20–30–(40) µm.Occurrence:  Commonly found in weakly to moderately acidic small water bodies of transitional mires and the like.Note: The image on the right shows the strongly curved variety arcuatum.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 09/2009. Scale bar indicates 100 µm.Closterium closterioides shows its alate chloroplasts (stellate shape in cross section). Closterium closterioides shows its alate chloroplasts (stellate shape in cross section).Place name: Wetland near Schladming (Austria) Latitude: 47.37386     Longitude: 13.823016Microscope Zeiss Universal, camera Olympus C7070WZ. 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 09/2009. Scale bar indicates 100 µm.This optical longitudinal section shows the nucleus and apical vacuoles with crystals.Place name: Wetland near Schladming (Austria) Latitude: 47.37386     Longitude: 13.823016Microscope Zeiss Universal, camera Olympus C7070WZ. 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 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 06/2023. 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 06/2023. Scale bars indicate  50 µm.Four images.First:Synoptic representation of the cell surface showing girdle bands.Second:First optical cross-section showing the structure of the chloroplasts.Third and fourh: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 Lauchseemoor, Fieberbrunn (Tyrol, Austria)  Latitude: 47.46954439     Longitude: 12.53826499Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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 10/2019. Scale bars indicate 100 µm.Two images.First:Synoptic representation of the stellate chloroplasts.Second:Optical cross-section through ribs of the stellate chloroplasts, nucleus and terminal vacuoles.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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria)  Latitude: 47.30234117     Longitude: 12.41751194Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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 06/2023. Scale bars indicate  50 µm.Four images.First:Synoptic representation of the cell surface showing girdle bands.Second:First optical cross-section showing the structure of the chloroplasts.Third and fourh: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 Lauchseemoor, Fieberbrunn (Tyrol, Austria)  Latitude: 47.46954439     Longitude: 12.53826499Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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 04/2007. 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: Bogs near Salzburg (Austria)  Latitude: 48.068516     Longitude: 12.954134Microscope Zeiss Universal, camera Olympus C7070WZ. 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 06/2023. Scale bars indicate  50 µm.Four images.First:Synoptic representation of the cell surface showing girdle bands.Second:First optical cross-section showing the structure of the chloroplasts.Third and fourh: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 Lauchseemoor, Fieberbrunn (Tyrol, Austria)  Latitude: 47.46954439     Longitude: 12.53826499Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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 04/2007. 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: Bogs near Salzburg (Austria)  Latitude: 48.068516     Longitude: 12.954134Microscope Zeiss Universal, camera Olympus C7070WZ. 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 04/2007. Scale bars indicate 100 µm.Chloroplasts with stellate shape in cross-section. The inset shows the delicate surface texture of cell wall surface in high resolution (Planapochromat 63/1.4). The usually seen longitudinal stripes are not yet developed.First cell developed from a cystozygote. In species with girdle bands, first cells are characterized by the fact that they are without them!Place name: Bogs near Salzburg (Austria)  Latitude: 48.068516     Longitude: 12.954134Microscope Zeiss Universal, camera Olympus C7070WZ. 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 10/2019. Scale bars indicate 50 µm.Two images. First:Synoptic representation of the cell surface.Second:Optical cross-section through ribs of the stellate chloroplasts, nucleus and terminal vacuoles.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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria)  Latitude: 47.30234117     Longitude: 12.41751194Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. 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