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Usnea lichen growing on island oak

By Western Ecological Research Center (WERC) 2011 (approx.)
A branched, hair-like lichen (Usnea) dangles from a mossy branch, with water droplets glistening on the lichen
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Detailed Description

A beard lichen (Usnea sp.) grows on an Island Oak on Santa Rosa Island and helps to create the fog precipitation.

Sources/Usage

Public Domain.