Taxon Account

Psammothidium altaicum (Poretz.) L.Bukhtiyarova in L.Bukhtiyarova & Round; 1996; 5

Synonymy

Achnanthes altaica var. minor

Key references

Flower R. J., Jones V. J. 1989. Taxonomic descriptions and occurrences of new Achnanthes taxa in acid lakes in the UK. Diatom Research. 4(2): 227-239.

Morphology

Shape
Valves lanceolate, small valves elliptic-lanceolate.

Symmetry
Isopolar, bilaterally symmetrical, heterovalvar.

Striae
Radiate.

Axial area
Narrow, linear.

Central area
On the raphe valve rhombic, small, sometimes irregular to over 1/2 of the valve width, on the rapheless valve large, rhombic, merging with a narrow axial area towards the valve ends.

Raphe
Straight proximal and distal external raphe ends.

Literature

References are given in chronological order.

Reference
Citation
Flower R. J., Jones V. J. 1989. Taxonomic descriptions and occurrences of new Achnanthes taxa in acid lakes in the UK. Diatom Research. 4(2): 227-239. Morphology; Taxonomy; Description; Type Illustration;
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; Taxonomy; Illustrations
This page should be cited as:

Flower R., Jüttner I., Jones V. Psammothidium altaicum (Poretz.) L.Bukhtiyarova in L.Bukhtiyarova & Round; 1996; 5. 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=4364. [Accessed:  ].

Image Gallery

Record last modified: 27/12/2020