Art: Cosmarium centractum
VANDA: Planteplankton 30.08.1990 Porsgrunn videregående skole Kverndammen (Porsgrunn, Telemark) | Cosmarium centractum Elakatothrix cf. viridis Elakatothrix viridis Korshikoviella sp. Korshikoviella spp. Monoraphidium sp. Tabellaria fenestrata Tabellaria flocculosa |