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Scientific name
Cosmarium holmiense P. Lundell 1871 var. holmiense
Group of organisms
Desmidiales
Red List Category
Threat of Unknown Extent
Responsibility of Germany
General responsibility
Current population status
very rare
Long-term population trend
decline of unknown extent
Short-term population trend
decrease of unknown extent
Previous Red List Category
Threat of Unknown Extent
Change of category compared to previous Red List
Red List Category unchanged
Source

Kusber, W.-H. & Gutowski, A. (2018): Rote Liste und Gesamtartenliste der Zieralgen (Desmidiales) 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): 711-778.