| SVCK Number: | 484 |
| Genus: | Cosmarium |
| Species: | quadratum |
| Class: | Zygnematophyceae |
| Order: | Desmidiales |
| Family: | Desmidiaceae |
| Recommended Medium: | EST |
| Collector: | Engels, M. |
| Collection Country: | Sweden |
| Collection Locality: | Sweden (uncert. approx. 800000m) |
| Geo Coordinates WGS84: | N 63° 15' 12", E 16° 01' 58" |
| Date of Collection: | 01.01.1999 |
| Determined by: | Engels, M. |
| Strain used in Publication(s): | Gontcharov and Melkonian 2008 Am J Bot 95, 1079-1095 |
| Red List Information, UK (Brodie et al., 2007): | endangered (Cat.2) |
| Remark(s): | origin IPM, isolated by Engels, M. |
