First record of Paralemanea torulosa (Roth) Sheath & A.R. Sherwood and new findings of Lemanea fluviatilis (Linnaeus) C. Ag. and Hildenbrandia rivularis (Liebmann) J. Agardh (Rhodophyta) in Serbia

The paper presents the first record of the freshwater red alga Paralemanea torulosa and new findings of the species Lemanea fluviatilis and Hildenbrandia rivularis in Serbia. The existence of all three species was recorded in the upper reaches of clean fast-flowing rivers and brooks belonging to the basin of the Danube River. Lemanea fluviatilis was found in the Dojkinačka River in Eastern Serbia, while Paralemanea torulosa was recorded in the Drina River and Hildenbrandia rivularis in the Cvetića Brook and Bioštanska Banja Brook in Western Serbia. These reports are important for conservation of the biodiversity of Serbia, since it is well known that freshwater red algae are endangered and rare species (taxa) in many countries. In Serbia they are under strict protection of the law.