Euastrum verrucosum
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Flekkefjord vgs | Agder, Norway | 3 | 1 | 0 | 1994-09-28 |
| Overhalla videregående skole | Trøndelag, Norway | 2 | 1 | 0 | 1990-08-31 |
| Smøla videregående skole | Møre og Romsdal, Norway | 1 | 1 | 0 | 1993-06-19 |
| Sogndal vidaregåande skule | Vestland, Norway | 1 | 1 | 0 | 1991-09-18 |