Ключевые слова: abstract, algae, background, beautiful, biology, closeup, crust, detail, epiphytes, foliose lichen, form, formation, fungi, fungus, geology, growth, iceland, icelandic, lichen, lichens, life, life form, macro, natural, nature, organism, pattern, photobiont, photosynthetic, plant, plants, primitive, rock, rocky, species, symbiotic, texture,