Desmids –
Archaeplastida (Part)
Observations on Closterium kuetzingii
Gallery Prof. Rupert Lenzenweger
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Closterium kuetzingii Brébisson 1856
Most likely ID: n.a.
Basionym: n.a.
Add’l Synonyms: Stauroceras intermedium Kützing 1849
Closterium rostratum var. kuetzingii (Brébisson) Klebs 1879
Arthrodia kuetzingiis (Brébisson) Kuntze 1891
Closterium kuetzingii var. onychosporum West & G.S.West 1905
Closterium kuetzingii var. laeve Willi Krieger 1935
Stauroceras kuetzingii (Brébisson) Cedergren 1938
Closterium kuetzingii f. sigmoideum Irénée-Marie 1939
Description: The cells are slender (L/W (15)–20–30–(40)) , spindle-shaped, almost straight, only slightly curved towards the cell ends, convex in the middle on the belly side. The cell ends are obliquely rounded, cell wall delicately striped, colorless to slightly brownish, without girdle bands. Similar forms are Closterium setaceum (is slimmer) and Closterium rostratum (significantly plumper).
Dimension: Length (200)–300–550–(700) µm, width (13)–15–25–(28) µm.
Occurrence: Widely found in shore zones of clean lakes, ponds and other small bodies of water, sometimes also in plankton.
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.
Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.
Characteristic data for the curvature according to Coesel & Meesters 2023
Curvature class: “almost straight” to “very slightly curved”
Curvature index: 0.000–0.132
© 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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teliferum
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scabrum
capitulum
forficulatum
oligacanthum
var. incisum
chlamydosporum
arcuatum
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truncata
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rubescens
venustum
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ralfsii
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digitus
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intermedium
dissiliens
kuetzingii
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aureus
botrytis
quadratum
quadrum
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