Lichens are much harder and many are flatter than moss, although some lichens are stringy,' says Scott. 'Lichens on rocks are flat, on trees they are stringy,' he explains. Moss, on the other hand ...

But let’s not forget the lichens. Fruticose lichens grow on a tamarack branch. A hardy growth on the sides of tree trunks that often appears to be like paint has been on trees all winter.

Ecologically particularly valuable, mysterious biotopes grow between mighty tree trunks in the north of the country - a quiet ...