Powder-headed Tube Lichen, Tube Lichen
Hypogymnia tubulosa
Synonym: Parmelia tubulosa
The upper surface of powder-headed tube lichen as seen on tree branches at the Hemlock Lake Picinic Area, Gifford Pinchot National Forest..........November 10, 2014.
The lower surface of powder-headed tube lichen as seen on tree branches at the Hemlock Lake Picinic Area, Gifford Pinchot National Forest..........November 10, 2014.
Paul Slichter