Localities: Korssjøen: 06.09.1989
| Reporter: | Holmestrand videregående skole |
| Site: | Korssjøen () |
| Date: | 1989-09-06 |
| Activity: | VANDA: Påvekstalger |
Observation
| Species: | Oedogonium sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Oscillatoria sp. |
| Number: | 1 |
| Original: | Ja |
| Species: | Scytonema sp. |
| Number: | 1 |
| Original: | Ja |