Lemanea fucina Bory, 1808 (Lemaneaceae, Rhodophyta), a rare species with a variable morphology: First record in the Republic of Montenegro

The genus Lemanea and a species belonging to this genus, Lemanea fucina Bory 1808, are reported for the first time in the Republic of Montenegro (southeast Europe, in the river Tara, at one locality - “Splavište” (N-43° 07’ 721”, E 019° 18 ‘609”). This is a new finding, and also the southernmost point of occurrence of this species in Europe. The species is characteristic mostly for rivers of the countries of northern and western Europe. The variable morphological characteristics of this species are described and illustrated in this work