The work complements and develops investigations on the euglenophytes of the Kraków‑Częstochowa Upland (Wyżyna Krakowsko‑Częstochowska), Southern Poland. The Upland is built of upper Jurassic limestones forming rocky walls up to 60 m in height with picturesque stream ravines and groups of rocks and mogotes as single rocks on the outcrops.

The paper gives information on taxonomy, occurrence and environmental characteristics of euglenophytes occurring in various types of water body: karstic village and field ponds, fishponds, springs, streams ditches, puddles and damp soil.

206 euglenophyte taxa were identified, among them 161 taxa new for this area, and 69 taxa new to Poland. All the taxa are briefly described and illustrated using original drawings and photographs (LM and SEM).

Five taxa: Euglena truncata, Trachelomonas botanica var. borealis, T. decorata, T. hirta var. duplex, and Phacus acuminatus var. indica, are new to the European flora. Very rare taxa occurring as either single or scarce specimens and known only in Europe are: Euglena slavjanskiensis, E. sima, E. hirudo, Trachelomonas ovoides, T. guttata T. sarmatica, T. lomnickii and T. gregussii var. danubialis.

The results of annual observations of euglenophyte populations occurring in four chosen karstic ponds – together with physico‑chemical characteristics of the water – are also given.

KEYS WORDS: Euglenophyta, taxonomy, environmental studies, Kraków‑Częstochowa Upland, Southern Poland

K. Wołowski, Department of Phycology, W. Szafer Institute of Botany, Polish Academy of Sciences, ul. Lubicz 46, PL‑31–512 Kraków, Poland; E‑mail: Wolowski@ib‑pan.Krakow.pl

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