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Algological studies of the River Silnica performed on 25 May and 5 June 1995 recorded the presence of 88 taxa. Among them there are a number of rare and interesting species, such as Navicula Integra (W.Smith) Ralfs, N. rhynchocephala Kütz., Neidium opulentum Hust., Gyrosigma acuminatum (Kütz.) Rabh., Rhoicosphaenia abbreviata (Ag.) Lange-Bert., Frustulia vulgaris (Thw.) De Toni, and Caloneis amphisbaena...
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