Notes on lichens on some islands in Onega Bay of the White Sea (Republic of Karelia)

Abstract

Information about lichens on Kondostrov Island and five other islands situated nearby in Onega Bay of the White Sea is given for the first time. A distinctive feature of this archipelago is Russian larch (Larix archangelica) growing in an isolated position in the westernmost point. All in all, 145 lichen species have been recorded from six islands, with the highest richness (90 species) on the largest island Kondostrov. Bryoria fremontii and Lobaria pulmonaria are red-listed in the Russian Federation; six more species, viz. Chaenotheca gracilenta, Collema nigrescens, Pertusaria coronata, Ramalina obtusata, R. roesleri, and R. subfarinacea, are red-listed in the Republic of Karelia.