Ключевые слова: abstract, ancient, background, bark, beautiful, biota, brown, cladonia, closeup, detail, environment, flora, forest, funnels, green, hole, hollow, leaf, lichen, lichens, material, moss, mossy, natural, nature, oak, old, outdoor, park, pattern, plant, rough, season, spring, summer, surface, texture, textured, tree, tree bark, trunk, white, wood, wooden,