Species: Micrasterias radiosa
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Bogstadvannet | Oslo, Norway | 2 | 1 | 0 | 1994-09-15 | |
| Litlevatn | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-09-07 | |
| Mosvatnet | Rogaland, Norway | 1 | 1 | 0 | 1994-09-28 | |
| Sennsjøen | Innlandet, Norway | 1 | 1 | 0 | 1996-09-10 | |
| Skjelbreidvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Svartaholtjørnet | Vestland, Norway | 1 | 1 | 0 | 1996-09-17 | |
| Tornesvatnet | Rogaland, Norway | 1 | 1 | 0 | 1990-09-27 |