Desmids –
Archaeplastida (Part)

Observations on Hyalotheca dissiliens

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Hyalotheca dissiliens Brébisson ex Ralfs 1848

Most likely ID: n.a.

Basionym: n.a.

Add’l Synonyms: Conferva dissiliens Dillwyn 1806
                               Desmidium mucosum (Dillwyn) Brébisson 1835
                               Glaeoprium dissiliens Berkeley 1845
                               Hyalotheca dissiliens var. tridentula Nordstedt 1873
                               Hyalotheca dissiliens var. quadridentula Nordstedt 1876
                               Hyalotheca dissiliens f. bidentula Nordstedt 1888
                               Hyalotheca dissiliens var. bidentula (Nordstedt) Boldt 1888

Sampling date 06/2024. Scale bars indicate 100 µm (1), 25 µm (2, 3).

Three images.

First:	Multicellular filament, one can clearly see the thick gelatinous sheath around the cells and the many spherical assimilates (oleosomes) in the cell lumen.
Second:	Short filament, some chloroplast wings are visible.
Third:	Short filament showing 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 at the Pillersee (Tyrol, Austria)
Latitude: 47.531785 Longitude: 12.573095

Microscope Zeiss Universal, camera Olympus OM-D M5 MKII. DOF images.

Sampling date 06/2012. Scale bar indicates 50 µm.

Place name: Wetland Mittermoos near Fieberbrunn (Tyrol, Austria)
Latitude: 47.47998695 Longitude: 12.5240922

Microscope Zeiss Universal, camera Canon EOS 600D. DOF image.

Sampling date 10/2006. Scale bar indicates 50 µm.

In phase contrast, the thick mucus layer around the algal filaments is clearly visible. On the right side of the image, another filament of H. dissiliens is perpendicular to the direction of observation, which makes the star-shaped cross-section of the chloroplast particularly clearly visible.

Place name: Pond Suploch, Hiddensee (Germany)
Latitude: 54.538638 Longitude: 13.097802

Microscope Zeiss Universal, camera Olympus C7070WZ.

Sampling date 11/2006. Scale bar indicates 50 µm.

Place name: Bog Dosenmoor near Neumuenster (Schleswig-Holstein, Germany)

Latitude: 54.136219 Longitude: 10.026433

Microscope 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.

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Observations on Hyalotheca dissiliens

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