Desmidiales and
Zygnematales –
Archaeplastida

Observations on ***Penium polymorphum* var. *polymorphum***

Protisten / Protisten.de – created by Wolfgang Bettighofer / Algae green-colored (2: Desmids): other Zygnematophyceae / Desmidiales / Peniaceae / Penium polymorphum var. polymorphum

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Penium polymorphum var. polymorphum Ehrenberg ex Ralfs 1848

Most likely ID: n.a.

Basionym: Closterium polymorphum Perty 1849

Add’l Synonyms: Penium rotundum W.B.Turner 1893

Sampling date 10/2019. Scale bars indicate 25 µm.

Five images.

First:	Synoptic representation of the cell surface. The bars in the enlarged inset mark 10 µm. The striation has a density of 19 lines/10 µm.
Second to fifth:	Several optical cross-section through ribs of the stellate chloroplasts. The numerous globules are stored assimilates. These cover the two pyrenoids that are located in the center of each chloroplast.

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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 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.