Staurastrum and
Staurodesmus
Desmidiaceae –
Archaeplastida

Observations on Staurodesmus convergens

Gallery Prof. Rupert Lenzenweger

Protisten / Protisten.de – created by Wolfgang Bettighofer / Algae green-colored (2: Desmidiaceae): Staurastrum / Staurodesmus convergens – Prof. R. Lenzenweger

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

Staurodesmus convergens (Ehrenberg ex Ralfs) S.Lillieroth 1950

Most likely ID: n.a.

Basionym: Arthrodesmus convergens Ehrenberg ex Ralfs 1848

Add’l Synonyms: Staurastrum convergens Meneghini 1840
                               Phycastrum convergens Perty 1849
                               Staurastrum convergens (Perty) Rabenhorst ????
                               Staurastrum convergens var. pumila Nordstedt 1870
                               Arthrodesmus minor W.B.Turner 1893
                               Arthrodesmus convergens f. typica W.B.Turner 1893
                               Staurodesmus convergens var. ralfsii Teiling 1967
                               Staurodesmus convergens var. laportei Teiling 1967
                               Staurodesmus convergens var. pumilus (Nordstedt) Teiling 1967

Description: Cells are wider than long, the cell halves have elliptical shapes. The cell halves are laterally covered with large inward bent spines. The central cuts are strongly broadened towards the periphery.

Dimension: Length 35–55 µm, width 50–80 µm (including spines).

Occurrence: In acidic to medium acidic fens. Ubiquitous and common.

Left: Original graphic by Prof. Lenzenweger.
Right: Photomicrograph by Prof. Lenzenweger. For microphotography, the microscope illumination was adjusted in such a way that as many features as possible that are important for species identification are prominently displayed.

© 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.

Protisten.de

Observations on Staurodesmus convergens

New items

New items