Desmids –
Archaeplastida (Part)

Observations on ***Micrasterias truncata* var. *quadrata***

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Position in the EOL taxonomic tree. Please click on the tree view below to access EOL (Encyclopedia of Life).

Micrasterias truncata var. quadrata Bulnheim 1859

Most likely ID: n.a.

Basionym: n.a.

Add’l Synonyms: Micrasterias truncata var. rotundata Y.V.Roll 1924
Micrasterias quadrata (C.O.Bulnhein) S.Thunmark 1942
Micrasterias truncata f. quadrata (Bulnheim) H.Croasdale 1977

Sampling date 06/2024. Scale bars indicate 50 µm.

Six images. Optical journey into the interior of the cell.

First:	Synoptic representation of the cell outline, the late chloroplasts and the cell wall covered with tubercles (tiny knobs).
Second to fifth:	Series of optical cross-sections through the cell showing chloroplast wings.
Sixth:	Deepest optical section plane with cell nucleus and pyrenoids. Note the representation of the mucilaginous sheeth around 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: Wetland Lauchseemoor, Fieberbrunn (Tyrol, Austria)
Latitude: 47.46954439 Longitude: 12.53826499

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

Sampling date 10/2019. Scale bar indicates 50 µm.

Place name: Bog Waasenmoos, Pass Thurn near Mittersill (Tyrol, Austria)
Latitude: 47.30234117 Longitude: 12.41751194

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF image.

Sampling date 09/2009. Scale bars indicate 25 µm.

Two images.
Cells shortly after binary fission. The flat-looking connection between the division products is the primary cell wall of the half-cells newly formed during cell division.

First:	Synoptic representation of the cell surface.
Second:	Optical cross-section through the cell showing chloroplasts.

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 near Schladming (Austria)
Latitude: 47.37386 Longitude: 13.823016

Microscope 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.