Although one finds lichens throughout the parks below, there are certain areas where lichens are most abundant, and where one finds the greatest variety of lichen species. In some places, one tends to find lichens that have been flattened under the feet of joggers or the wheels of bicycles. In some ways the flattening obscures lichens unique growth patterns, since these patterns are essentially three-dimensional. However, in other ways the flattening reveals aspects of these growth patterns that might otherwise be difficult to perceive, or comprehend.

Decaying Lichen, Feb. 14, 2010

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