Ключевые слова: algae, background, bark, biology, botany, branch, climate, close up, closeup, color, cover, covered, detail, ecosystem, environment, flora, foliose, foliose lichen, forest, fungi, fungus, green, grey lichen, growing, growth, hypogymnia, hypogymnia physodes, lichen, lichen on branch, lichenized fungi, lichens, macro, natural, nature, outdoor, parasitic, park, plant, season, spring, stick, symbiosis, symbiotic, texture, tree, tree branch, tree lichen, twig, twigs, wood,