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Lichens are actually made up of a fungus and an algae growing together in a mutually beneficial relationship. The fungus gets water and minerals from the air and the material it is growing upon. It also provides structure and protection for the algae. The algae provides carbohydrates and vitamins the fungus needs to grow. Lichens may be flat, leafy, or hair-like. All three forms occur on tree bark as well as on rocks, soil, fence posts, etc. Colors may range from white to gray, red, green, yellow, or black.

Source: UF|IFAS
Location: Myakahatchee Environmental Park

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