Taxon Account

Psammothidium abundans (Manguin) Bukhtiyarova & Round; 1996; 22

Key references

Van de Vijver B., Kelly M., Blanco S., Jarlman A., Ector L. 2008. The unmasking of a sub-antarctic endemic: Psammothidium abundans (Manguin) Bukhtiyarova et Round in European rivers. Diatom Research. 23(1): 233-242.

Morphology

Shape
Linear-elliptic with broadly rounded subrostrate ends.

Symmetry
Isopolar, bilaterally symmetrical, heterovalvar.

Striae
Parallel or slightly radiate.

Axial area
Narrow, linear.

Central area
On both valves a transverse fascia, sometimes a rectangular or acute-angled subfascia, sometimes a smaller irregular central area, when not extending to the margins bordered by striae of varying length on one or both sides.

Raphe
Straight, very slightly expanded round proximal and distal ends.


SEM morphology
Uniseriate striae with round or transapically elongated external areola openings, internally areolae are occluded by cribra.

Literature

References are given in chronological order.

Reference
Citation
Bourrelly P., Manguin E. 1954. Contribution à la Flore Algale d'eau Douce des Iles Kerguelen. Mémoires de L'Institut Scientifique de Madagascar, séries B. 5: 5-58. Morphology; Description; Illustrations; Taxonomy
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. Taxonomy; Morphology; Illustrations
Van de Vijver B., Kelly M., Blanco S., Jarlman A., Ector L. 2008. The unmasking of a sub-antarctic endemic: Psammothidium abundans (Manguin) Bukhtiyarova et Round in European rivers. Diatom Research. 23(1): 233-242. Ecology; Type Illustration; Morphology;
Heudre D., Wetzel C.E., Van de Vijver B., Moreau L., Ector L. 2019. Two sub-Antarctic and Northern Europe distributed diatom species found in a middle-mountain lake in France. Botany Letters. 166(2): 212-220. Illustrations; Morphology; Ecology
This page should be cited as:

Jüttner I. Psammothidium abundans (Manguin) Bukhtiyarova & Round; 1996; 22. 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=4292. [Accessed:  ].

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Record last modified: 27/12/2020