Closteriaceae –
Archaeplastida
Observations on Closterium dianae
Gallery Prof. Rupert Lenzenweger
Position in the EOL taxonomic tree. Please click on the tree view below to access EOL (Encyclopedia of Life).
Closterium dianae Ehrenberg ex Ralfs 1848
Most likely ID: n.a.
Basionym: n.a.
Add’l Synonyms: Arthrodia dianae (Ralfs) Kuntze 1891
Description: The cells are (9)–10–14–(16) times longer than they are wide, evenly curved, and continuously narrow towards the slightly truncated cell ends, in which a small button-like thickening (end pore) is usually also visible. The cell wall is smooth, and there are no girdle bands. Distinguished from similarly curved closteria by its extremely slender shape.
Dimension: Length (160)–180–300–(380) µm, width (15)–20–30–(40) µm.
Occurrence: Commonly found in weakly to moderately acidic small water bodies of transitional mires and the like.
Note: The image on the right shows the strongly curved variety arcuatum.
Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.
Characteristic data for the curvature according to Coesel & Meesters 2023
Curvature: fairly strongly arched
Curvature index: 0.33–0.66
© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
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