Taxon Account

Achnanthidium eutrophilum (Lange-Bertalot in Lange-Bertalot & Metzeltin) H. Lange-Bertalot; 1999; 277

Synonymy

Achnanthes eutrophila Lange-Bertalot in Lange-Bertalot & Metzeltin 1996

Key references

Hlúbikova D., Ector L., Hoffmann L. 2011. Examination of the type material of some diatom species related to Achnanthidium minutissimum (Kütz.) Czarn. (Bacillariophyceae). Algological Studies. 136/137: 19-43.

Morphology

Size
Length 4-19 µm, width 3-5 µm (central European population, Hofmann et al. 2011).

Symmetry
Valves isopolar, bilaterally symmetrical.

Valve
Frustules heterovalvar with concave raphe valve and convex rapheless valve.

Striae
Striae uniseriate, clearly visible in LM, radiate, wider spaced in the valve centre, particularly on the raphe valve. The central striae can be slightly shortened.

Axial area
Linear, slightly widening towards the valve centre on the raphe and rapheless valve.

Central area
Small rounded or indistinct on the raphe valve, slightly widened or indistinct on the rapheless valve.

Raphe
Simple, filiform and straight, proximal ends slightly expanded.


SEM morphology
Areolae round or oval, and often transapically orientated slits adjacent to the valve margin.

Literature

References are given in chronological order.

Reference
Citation
Lange-Bertalot H., Metzeltin D. 1996. Indicators of Oligotrophy. 800 taxa representative of three ecologically distinct lake types. Koenigstein, Koeltz Scientific Books. 390 pp Morphology; Description; Illustrations
Lange-Bertalot H. 1999. Neue Kombinationen von Taxa aus Achnanthes Bory (sensu lato). 6. Lange-Bertalot, H. (ed.), Iconographia Diatomologica. Annotated Diatom Micrographs. Vol. 6. Phytogeography-Diversity-Taxonomy. Koeltz Scientific Books, Königstein, Germany. 276-289 pp Taxonomy
Hlúbikova D., Ector L., Hoffmann L. 2011. Examination of the type material of some diatom species related to Achnanthidium minutissimum (Kütz.) Czarn. (Bacillariophyceae). Algological Studies. 136/137: 19-43. Morphology; Type Illustration;
Wojtal A.Z., Ector L., Van de Vijver B., Morales E.A., Blanco S., Piatek J., Smieja A. 2011. The Achnanthidium minutissimum complex (Bacillariophyceae) in southern Poland. Algological Studies. 136/137: 167-191. Morphology; Illustrations

Similar Species

Similar species not published on this website:

Achnanthidium exile (Kützing) Heiberg; 1863; 119

This page should be cited as:

Jüttner I. Achnanthidium eutrophilum (Lange-Bertalot in Lange-Bertalot & Metzeltin) H. Lange-Bertalot; 1999; 277. In: Jüttner I., Bennion H., Carter C., Cox E.J., Ector L., Flower R., Jones V., Kelly M.G., Mann D.G., Sayer C., Turner J. A., Williams D.M.. Freshwater Diatom Flora of Britain and Ireland. Amgueddfa Cymru - National Museum Wales. Available online at https://naturalhistory.museumwales.ac.uk/diatoms/browsespecies.php?-recid=4204. [Accessed:  ].

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Record last modified: 27/12/2020