Close-up of a textured rock surface covered with various types of lichen. The lichen exhibits different shades of gray and whitish-green, creating an intricate, natural pattern. The rock itself shows a mix of gray and reddish hues, adding depth and contrast to the scene. Lichens, symbiotic associations between fungi and algae or cyanobacteria, are key indicators of air quality and contribute to ecosystem stability. The image highlights the complex interplay between organic growth and mineral structures in a natural setting.
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