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.
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., Carter C., Cox E.J., Ector L., Jones V., Kelly M.G., Kennedy B., Mann D.G., Turner J. A., Van de Vijver B., Wetzel C.E., 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