| Cyclotella sp. | | 05.06.1990 | 05.06.1990 | Nøklevann (Oslo) |
| Cyclotella sp. | | 04.06.1990 | 04.06.1990 | Husavatnet (Osterøy, Vestland) |
| Cyclotella sp. | | 01.06.1990 | 01.06.1990 | Kverndammen (Porsgrunn, Telemark) |
| Cyclotella sp. | | 01.06.1990 | 01.06.1990 | Laupen (Østre Toten, Innlandet) |
| Cyclotella sp. | | 01.06.1990 | 01.06.1990 | Laupen (Østre Toten, Innlandet) |
| Cyclotella sp. | | 31.05.1990 | 31.05.1990 | Kolbjørnviksjøen (Marker, Østfold) |
| Cyclotella spp. | | 31.05.1990 | 31.05.1990 | Kolbjørnviksjøen (Marker, Østfold) |
| Cyclotella cf. comta | | 30.05.1990 | 30.05.1990 | Korssjøen (Holmestrand, Vestfold) |
| Cyclotella sp. | | 30.05.1990 | 30.05.1990 | Lauvtjønna (Malvik, Trøndelag) |
| Cyclotella sp. | | 29.05.1990 | 29.05.1990 | Kolbotnvannet (Nordre Follo, Akershus) |
| Cyclotella sp. | | 28.05.1990 | 28.05.1990 | Granavatnet (Inderøy, Trøndelag) |
| Cyclotella spp. | | 25.05.1990 | 25.05.1990 | Kolbotnvannet (Nordre Follo, Akershus) |
| Cyclotella sp. | | 23.05.1990 | 23.05.1990 | Lauvtjønna (Malvik, Trøndelag) |
| Cyclotella sp. | | 22.05.1990 | 22.05.1990 | Sillongen (Vestre Toten, Innlandet) |
| Cyclotella spp. | | 10.10.1989 | 10.10.1989 | Ibestadvatnet (Ibestad, Troms) |
| Cyclotella spp. | | 06.10.1989 | 06.10.1989 | Steglevannet (Drammen, Buskerud) |
| Cyclotella spp. | | 27.09.1989 | 27.09.1989 | Stordammen (Asker, Akershus) |
| Cyclotella spp. | | 27.09.1989 | 27.09.1989 | Laupen (Østre Toten, Innlandet) |
| Cyclotella spp. | | 25.09.1989 | 25.09.1989 | Myklebustvannet (Herøy, Møre og Romsdal) |
| Cyclotella spp. | | 22.09.1989 | 22.09.1989 | Haukvatnet (Trondheim - Tråante, Trøndelag) |
| Cyclotella spp. | | 21.09.1989 | 21.09.1989 | Semsvannet (Asker, Akershus) |
| Cyclotella spp. | | 20.09.1989 | 20.09.1989 | Sagtjernet (Elverum, Innlandet) |
| Cyclotella sp. | | 19.09.1989 | 19.09.1989 | Liavatnet (Hitra, Trøndelag) |
| Cyclotella spp. | | 18.09.1989 | 18.09.1989 | Gravdalsvatnet (Bergen, Vestland) |
| Cyclotella cf. comta | | 18.09.1989 | 18.09.1989 | Årungen (Ås, Akershus) |
| Cyclotella spp. | | 15.09.1989 | 15.09.1989 | Nøklevann (Oslo) |
| Cyclotella spp. | | 14.09.1989 | 14.09.1989 | Kjemsjøen (Stor-Elvdal, Innlandet) |
| Cyclotella sp. | | 14.09.1989 | 14.09.1989 | Sillongen (Vestre Toten, Innlandet) |
| Cyclotella spp. | | 14.09.1989 | 14.09.1989 | Sillongen (Vestre Toten, Innlandet) |
| Cyclotella spp. | | 14.09.1989 | 14.09.1989 | Hostadvatnet (Hustadvika, Møre og Romsdal) |
| Cyclotella cf. kuetzingiana | | 13.09.1989 | 13.09.1989 | Akersvannet (Sandefjord, Vestfold) |
| Cyclotella spp. | | 13.09.1989 | 13.09.1989 | Gullerudtjern (Ringerike, Buskerud) |
| Cyclotella spp. | | 13.09.1989 | 13.09.1989 | Reinsvolldammen (Vestre Toten, Innlandet) |
| Cyclotella spp. | | 07.09.1989 | 07.09.1989 | Tveitevannet (Bergen, Vestland) |
| Cyclotella sp. | | 07.09.1989 | 07.09.1989 | Sundkilen (Kviteseid, Telemark) |
| Cyclotella spp. | | 07.09.1989 | 07.09.1989 | Dælivannet (Bærum, Akershus) |
| Cyclotella spp. | | 06.09.1989 | 06.09.1989 | Rossevatn (Karmøy, Rogaland) |
| Cyclotella cf. comta | | 06.09.1989 | 06.09.1989 | Korssjøen (Holmestrand, Vestfold) |
| Cyclotella spp. | | 04.09.1989 | 04.09.1989 | Molbekktjernet (Moss, Østfold) |
| Cyclotella spp. | | 29.08.1989 | 29.08.1989 | Jarenvannet (Gran, Innlandet) |
| Cyclotella spp. | | 24.08.1989 | 24.08.1989 | Vålåsjøen (Sel, Innlandet) |
