Public domain photos

The image shows a close up of a rock with lichen growing on it. The lichen is a light green color and is spread across the surface of the rock. It is clustered together in small clusters, and its texture is rough and bumpy.

The image shows a close up of a rock with lichen growing on it. The lichen is a light green color and is spread across the surface of the rock. It is clustered together in small clusters, and its texture is rough and bumpy.Open in library