Public domain photos

The image shows a close up of a tree trunk with lichen growing on it, and in the center of the image there is a black and white mold. The mold is covered in a thick layer of lichen, giving the tree trunk a unique texture and color.

The image shows a close up of a tree trunk with lichen growing on it, and in the center of the image there is a black and white mold. The mold is covered in a thick layer of lichen, giving the tree trunk a unique texture and color.Open in library