Lichens – indicators of old-growth forests in biocentres of Lithuania and North-East Poland [Kerpės – senų miškų indikatorės Lietuvos ir Šiaurės rytų Lenkijos biocentruose]. – Botanica Lithuanica, 10(1): 59–74

Based on a list of 75 species of lichen indicators of old-growth forest, 13 territories (biocentres) for lichens were chosen in Lithuania and North-East Poland. Although the territories differ significantly in indicator species numbers, partly due to recording differences, they provide good baseline data for supporting a biodiversity network in this region.

Keywords: lichens, old-growth forests, indicators, Lithuania, Poland.