Pleurotaenium trabecula
| Participant | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. |
|---|---|---|---|---|---|
| Vardafjell videregående skole | Rogaland, Norway | 3 | 1 | 0 | 1990-09-25 |
| Kongsberg videregående skole/Undervisningssted Tinus Olsen | Buskerud, Norway | 1 | 1 | 0 | 1993-06-03 |
| Samfundets skole Egersund | Rogaland, Norway | 1 | 1 | 0 | 1993-09-20 |