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Scientific name
Psammothidium altaicum (V.S. Poretzky) Bukht. & Round
Synonyms or name indicated in the previous Red List
Achnanthes altaica (V. S. Poretzky) Cleve-Euler
Group of organisms
Süßwasser-Kieselalgen
Red List Category
Highly Threatened
Responsibility of Germany
General responsibility
Current population status
very rare
Long-term population trend
moderate decline
Short-term population trend
unknown
Previous Red List Category
Threat of Unknown Extent
Change of category compared to previous Red List
The change of category is not assessable, for example because the previous Red List does not list the taxon or the taxon has not been assessed in the previous Red List.
Status
Indigenes or Archaeobiota
Source

Hofmann, G.; Lange-Bertalot, H.; Werum, M. & Klee, R. (2018): Rote Liste und Gesamtartenliste der limnischen Kieselalgen (Bacillariophyta) Deutschlands – In: Metzing, D.; Hofbauer, N.; Ludwig, G. & Matzke-Hajek, G. (Red.): Rote Liste gefährdeter Tiere, Pflanzen und Pilze Deutschlands. Band 7: Pflanzen. – Münster (Landwirtschaftsverlag). – Naturschutz und Biologische Vielfalt 70 (7): 601-708.