bark lichen on volcanic rocks in the mountains of ivano-frankivsk region

algae algal flora beach botany brown closeup coastal limestone colorful covered crimea disclike apothecia dry ecology fungi fungus geological geology gray lichen greenish yellow growth lace on rock lichenes lichenology lichens moss natural stones nature old stone outdoor parmelia photosynthetic plant layers seaside sporophyte spots surface symbiosis symbiotic texture thallus wild xanthoparmelia sp xanthoria