Taxon Account

Psammothidium lauenburgianum (Hustedt) Bukhtiyarova & Round; 1996; 17

Synonymy

Achnanthidium lauenburgianum (Hustedt) O.Monnier, Lange-Bertalot & Ector in Monnier et al. 2007
Achnanthes lauenburgiana Hustedt 1950

Key references

Lange-Bertalot H., Krammer K. 1989. Achnanthes eine Monographie der Gattung mit Definition der Gattung Cocconeis und Nachträgen zu den Naviculaceae. Bibliotheca Diatomologica Vol. 18. 393 pp; 100 pls

Bukhtiyarova L., Round F.E. 1996. Revision of the genus Achnanthes sensu lato. Psammothidium, a new genus based on A. marginulatum. Diatom Research. 11(1): 1-30.

Morphology

Size
6.0-9.0 µm long, 3.5-4.5 µm wide (UK population); 4.5-17 µm long, 3-6 µm wide (Krammer & Lange-Bertalot 2004).

Shape
Valves elliptic-lanceolate, ends broadly rounded, not or very slightly protracted.

Symmetry
Isopolar, bilaterally symmetrical, heterovalvar.

Striae
Striae radiate on both valves, 28 in 10 µm (UK population); 24-28 in 10 µm (Krammer & Lange-Bertalot 2004).

Axial area
Narrow, linear.

Central area
Raphe valve with narrow to moderately wide transverse fascia, often slightly wider on one side, sometimes bordered by few very short striae; rapheless valve with narrow to moderately wide fascia on one side, on the opposite side a large area with a horseshoe-shaped depression.

Raphe
Raphe straight with expanded, teardrop-shaped proximal ends.

Literature

References are given in chronological order.

Reference
Citation
Hustedt F. 1950. Die Diatomeenflora norddeutscher Seen V-VII. Seen in Mecklenburg, Lauenburg und Nordostdeutschland. Archiv für Hydrobiologie . 43: 329-458; pls 21-41. Morphology; Taxonomy; Description; Type Illustration
Reichardt E. 1984. Die Diatomeen der Altmühl. Bibliotheca Diatomologica Vol. 6. 1-169 pp Morphology; Illustrations
Simonsen R. 1987. Atlas and Catalogue of the Diatom Types of Friedrich Hustedt. J. Cramer in der Gebrüder Borntraeger Verlagsbuchhandlung, Berlin, Stuttgart. Morphology; Type Illustration
Lange-Bertalot H., Krammer K. 1989. Achnanthes eine Monographie der Gattung mit Definition der Gattung Cocconeis und Nachträgen zu den Naviculaceae. Bibliotheca Diatomologica Vol. 18. 393 pp; 100 pls Type Illustration; Morphology
Bukhtiyarova L., Round F.E. 1996. Revision of the genus Achnanthes sensu lato. Psammothidium, a new genus based on A. marginulatum. Diatom Research. 11(1): 1-30. Illustrations; Taxonomy; Morphology
Krammer K., Lange-Bertalot H. 2004. Süßwasserflora Mitteleuropas. Bacillariophyceae. 4. Teil. Achnanthaceae. Kritische Ergänzungen zu Achnanthes s.l., Navicula s.str., Gomphonema. Eds Ettl H., Gärtner G., Heynig H., Mollenhauer D., Gustav Fischer Verlag, Stuttgart. 468 pp Morphology; Illustrations
Wojtal A. 2004. New and rare species of the genera Achnanthidium and Psammothidium (Bacillariophyceae) in the diatom flora of Poland. Polish Botanical Journal. 49(2): 215-220. Morphology; Illustrations
Monnier O., Lange-Bertalot H., Hoffmann L., Ector L. 2007. The genera Achnanthidium Kützing and Psammothidium Bukhtiyarova et Round in the family Achnanthidiaceae (Bacillariophyceae): A reappraisal of the differential criteria. Cryptogamie, Algologie. 28(2): 141-158. Morphology; Illustrations
Żelazna-Wieczorek J. 2011. Diatom flora in springs of Łódź Hills (Central Poland). Biodiversity, taxonomy, and temporal changes of epipsammic diatom assemblages in springs affected by human impact. Diatom Monographs. Vol. 13: 419 pp; 124 pls. Illustrations; Ecology
Rimet F., Bouchez A., Tapolczai K. 2016. Spatial heterogeneity of littoral benthic diatoms in a large lake: monitoring implications. Hydrobiologia. 771: 179-193. Ecology
Peeters V., Ector L. 2018. Atlas des diatomées des cours d'eau du territoire bourguignon. Direction Régionale de l'Environnement, de l'Aménagement et du Logement Bourgogne-Franche-Comté, Dijon. Vol.2: 271 pp. Morphology; Illustrations; Ecology
Reichardt E. 2018. Die Diatomeen im Gebiet der Stadt Treuchtlingen. Bayerische Botanische Gesellschaft Vol. 1,2. 1184 pp Morphology; Illustrations
This page should be cited as:

Jüttner I., Ector L., Wetzel C.E. Psammothidium lauenburgianum (Hustedt) Bukhtiyarova & Round; 1996; 17. 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=3549. [Accessed:  ].

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Record last modified: 29/09/2021