Public domain photos

The image shows a close up of a tree trunk with lichen on it, and in the center of the image there is a branch of an American sycamore tree. The bark of the tree is visible, and the lichen is a light brown color.

The image shows a close up of a tree trunk with lichen on it, and in the center of the image there is a branch of an American sycamore tree. The bark of the tree is visible, and the lichen is a light brown color.Open in library