Just what is lichen? It’s the symbiotic union of algae and fungus, with fungus being the dominant partner. Its combined form is different from either the fungus or algae.
Some varieties cling to rock surfaces and grow in a carpet-like state, while others branch out from the surface of damp wood in a more three-dimensional form. It fascinates me how similar lichen growing the woods looks like coral in the ocean.
Image created at ISO 200 – 1/200 sec. at f4 with a Canon 60mm macro and a subject to lens distance of about 8 inches and open shade under the forest canopy.
Image copyrighted. Any use requires licensing from Martha Lochert.