Hammered Shield Lichen, Net-marked Lichen, Shield Lichen
Parmelia sulcata
Shield lichen growing on the bark of a deciduous tree along the Whistle Punk Trail near the old Wind River Tree Farm, Gifford Pinchot National Forest............October 5, 2013.
Shield lichen growing on the bark of a deciduous tree along the Whistle Punk Trail near the old Wind River Tree Farm, Gifford Pinchot National Forest............October 5, 2013.
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Shield lichen growing on the bark of deciduous trees along Trout Creek at Hemlock Lake Picnic Area, Gifford Pinchot National Forest.........November 10, 2014.
Paul Slichter