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.
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., 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=4364. [Accessed:
].
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Record last modified: 27/12/2020