preview-picture | description | comment |
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ankistrodesmus spiralis renaturated clay pit near Bergisch-Gladbach June 2005 |
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Asterococcus superbus Gardenpond September 2016 |
You can see the concentric layered shell-membranes | |
Asterococcus superbus Gardenpond September 2016 |
Phasecontrast | |
Bulbochaete spec. national horticultural show Duesseldorf September 2006 |
typical are the long hairs that have an onion-like form at the basis | |
Bulbochaete spec. botanical garden, university Duesseldorf May 2007 |
Hair at the end of filament | |
Bulbochaete spec. botanical garden, university Duesseldorf May 2007 |
Oogonium with ovum | |
Bulbochaete spec. botanical garden, university Duesseldorf May 2007 |
Cell-wall of the oogonioum | |
Chaetophora spec. garden pond April 2005 |
Habitus, some filaments end in a long "hair" without chloroplasts. Stereomicroscope | |
chaetophora elegans garden pond April 2007 |
each hair consists of single, empty cells | |
Chaetophora spec. garden pond May 2010 |
Chaetophora forms branched filaments | |
chaetophora incrassata botanical garden, university Duesseldorf June 2005 |
similar to Ch. elegans, however macroscopically it forms a branches, lobated gelatin. | |
Chara spec. Eskesberg in Wuppertal August 2007 |
This is a monoecious species. Oogonium (right) and antheridium (left, orange colored) appear on one individual. | |
Chara spec. Garden pond August 2007 |
This is a dioecious species. Oogonium and antheridium appear on two different plants; here a female with an oogonium individual is shown. | |
Chara spec. Garden pond August 2007 |
This is a dioecious species. Oogonium and antheridium appear on two different plants; here a female with an oogonium individual is shown. | |
characium, species old Emscher, Emscherpark June 2004 |
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characium, species Unterbacher pond July 2002 |
zygote of chlamydomonas species garden pond April 2003 |
chlorella vulgaris garden pond December 2006 |
shown here as the symbiontic form that occurs in stentor polymorphus. The two circles mark the typical forms of the chloroplast. |
chlorococcum spec. garden pond March 2004 |
Division in daughter-cells | |
Cladophora glomerata Waterfall Neandertal March 2008 |
Cladophora consists of branched filamentsMicroscopy, Stereomicroscope, Microfototo | |
Cladophora glomerata Waterfall Neandertal March 2008 |
Branching | |
Cladophora glomerata Waterfall Neandertal March 2008 |
A new branching evolves through a protuberance under a transverse cell wand | |
Coelastrum astroideum Small pond near Hilden May 2011 |
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coelastrum microporum Eselsbach near the Unterbacher pond August 2003 |
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Coelastrum reticulatum Gardenpond, Lower Rhine region July 2016 |
Coelastrum reticulatum has been brought to Europe from the tropics at the beginning of the 20th. century. | |
Coelastrum reticulatum Northpark, Düsseldorf June 2011 |
Coelastrum reticulatum has been brought to Europe from the tropics at the beginning of the 20th. century. | |
coelastrum sphaericum botanical garden university Duesseldorf August 2006 |
4 pictures stacked with CombineZ5 | |
Coleochaete orbicularis Garden pond July 2010 |
24 pictures stacked with Zerene stacker | |
Coleochaete orbicularis Garden pond July 2010 |
Phase contrast, 10 pictures stacked with Zerene stacker | |
Coleochaete orbicularis Garden pond July 2010 |
Dark field, 20 pictures stacked with Zerene stacker | |
dictyosphaerium ehrenbergianum pond near the Wupper dam May 2006 |
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draparnaldia glomerata garden pond May 2005 |
In the dark-field-picture to the left you can see the highly viscous gelantin that surrounds draparnaldia. | |
Eremosphaera viridis Seethaler lake near Tamsweg, Austria September 2007 |
green moor-ball, large form | |
eudorina elegans Köln-Wahn moor, pond, May 2002 |
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eudorina spec botanical garden university Duesseldorf, August 2006 |
here we see the relatively unusual 8-celled form of eudorina | |
Glaucocystis spec. Heathland pond near Roermond, February 2008 |
Contains symbiontic cyanobacterias instead of a green chloroplast | |
Gloeococcus spec. Heathlandpond near Roermond, June 2015 |
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Gloeococcus spec. Heathlandpond near Roermond, June 2015 |
Phasecontrast | |
gloeocystis ampla border of garden pond, September 2006 |
left: habitus, outside of the pond, between moss middle: colony of several cells, right; single cell in layered gelatin |
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gonium pectorale garden pond, April 2002 |
right picture: early state of reproduction | |
gonium pectorale garden pond, April 2003 |
late state of reproduction: it is visible, that from each single cell a complete 16-celled coenobia is generated. | |
Gonium sociale Uni Düsseldorf, Botanical garden, February 2011 |
Always 4-celled, cells quadratically ordered and connected via a small papillae, central pyrenoid, eye-spot. | |
gonyostomum semen Elfenmeer, a heathland pond June 2005 |
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Haematococcus pluvialis Birds bath, Düsseldorf September 2021 |
Phasecontrast | |
Haematococcus pluvialis Birds bath, Düsseldorf September 2021 |
Phasecontrast | |
haematococcus pluvialis eaves gutter, Duesseldorf January 2007 |
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haematococcus spec. eaves gutter, Duesseldorf January 2007 |
aplanospores | |
haematococcus spec. Köln Wahn moor, December 2006 |
state of cell division | |
microspora spec. Köln Wahn moor, pond April 2006 |
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microspora spec. atmophytic in a gelantin between mosses, garden January 2007 |
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microspora spec. atmophytic in a gelantin between mosses, garden January 2007 |
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micractinium pusilium little creek near Roermond October 2002 |
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nephrocytium lunatum garden pond July 2002 |
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Oedogonium spec. Garden pond August 2008 |
Left to the oogonium there are 2 males . One is already empty, the other one cotains still the spermatozoides. | |
Oedogonium spec. Garden pond August 2008 |
The male is tightened via a rhizoid at the cellwall. | |
Oedogonium spec. Garden pond August 2008 |
Cap cell. These caps are formed during the cell division. | |
oedogonium spec. garden pond June 2004 |
young filament with rhizoid | |
palmodictyon viride botanical garden university Duesseldorf, March 2002 |
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pandorina morum pond near the Wupper dam, May 2006 |
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Pandorina morum Gardenpond, July 2015 |
Phasecontrast, colony in asexual reproduction. Each of the usuallay 16 single colony-members is generating a complete 16-celled daughter-colony. | |
Pandorina morum Gardenpond, July 2015 |
Darkfield, colony in asexual reproduction. Each of the usuallay 16 single colony-members is generating a complete 16-celled daughter-colony. | |
Pandorina morum Gardenpond, July 2015 |
Colony in asexual reproduction. Each of the usuallay 16 single colony-members is generating a complete 16-celled daughter-colony. | |
Pandorina morum Southpark Duesseldorf, April 2007 |
Each colony is surrounded by a gelantine shell. | |
Pandorina morum Southpark Duesseldorf, May 2007 |
Each cell with 2 flagella | |
Pandorina morum Southpark Duesseldorf, May 2007 |
Cells are wedge-shaped with the flat side exterior. | |
pediastrum boryanum garden pond, Bieberbach July 2006 |
10 pictures stacked with CombineZ5 | |
Pediastrum boryanum Fishpond near Denkligen, October 2007 |
Phasecontrast, 3 pictures stacked with CombineZM | |
pediastrum duplex botanical garden university Duesseldorf, August 2003 |
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Pediastrum duplex var. subgranulatum gardenpond August 2016 |
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pediastrum gracillimum little creek near Roermond October 2002 |
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pediastrum tetras botanical garden university Duesseldorf, December 2006 |
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scenedesmus spec. garden pond, spring 2001 |
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scenedesmus acuminatus garden pond, spring 2001 |
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Scenedesmus disciformis Southpark, Düsseldorf August 2008 |
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scenedesmus longispina botanical garden university Duesseldorf, May 2005 |
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scenedesmus opoliensis garden pond, spring 2001 |
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Scenedesmus quadricauda Elfenmeer, a heathland pond, August 2008 |
Phasecontrast | |
Scenedesmus quadricauda Elfenmeer, a heathland pond, August 2008 |
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scenedesmus tenuispina botanical garden university Duesseldorf, March 2006 |
5 pictures stacked with CombineZ5. | |
selenastrum bibraianum national horticultural show Duesseldorf, September 2006 |
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Sorastrum spinulosum Small pond near Hilden, May 2011 |
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Stephanosphaera pluvialis Bird bath, Müden July 2008 |
Stephanospaera is related to Haematococcus. 8 cells form a ring in a common gelatin. | |
Stephanosphaera pluvialis Bird bath, Müden July 2008 |
Each cell has two flagella, an eyespot, several contractile vacuoles and a large chloroplast with several pyrenoids. | |
tetraedron caudatum botanical garden university Duesseldorf, September 2006 |
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ulothrix moniliformis Cologne-Wahn moor May 2004 |
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vaucheria spec. mit synplanospore Itter-creek, Hilden March 2003 |
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