During a two-year investigation of the Úpské rašeliniště peat bog and the Pančavské rašeliniště peat bog in the Krkonoše Mts (Czech Republic) about 228 taxa of cyanobacteria and algae were found. The diatoms were the dominant group in most of the investigated samples. The relationship between algal flora and the environmental characteristics of the pools was studied. The pH, shading and type of bed were most important factors influencing algal communities in the pools.
A new species Pseudocarteria corcontica is described from small, acidic and oligotrophic water bodies in the Krkonoše Mts (Czech Republic). The cells are 17–27 × 22–35 µm in size, ellipsoidal or obovate and with a low truncate papilla. The thick cell wall is sometimes separated from the protoplast at the posterior end of the cell. The chloroplast is indistinctly asteroid with an ellipsoidal or half-ellipsoidal pyrenoid located below the centre of the cell. Numerous contractile vacuoles are not scattered as in other Pseudocarteria species, but mostly concentrated in the upper third of the cell and form circle beneath the cell wall. A small elliptical stigma is located in the anterior part of the cell. Cells divide in immobile sporangia (up to 38 µm in diameter) producing 2 or 4 daughter cells. Sexual reproduction is isogamic.