Powder-headed Tube Lichen, Tube Lichen
Hypogymnia tubulosa
Synonym: Parmelia tubulosa
![Powder-headed Tube Lichen, Tube Lichen: Hypogymnia tubulosa (Synonym: Parmelia tubulosa) (Parmeliaceae)](tubulosa/tubulosa6b.jpg)
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.
![Powder-headed Tube Lichen, Tube Lichen: Hypogymnia tubulosa (Synonym: Parmelia tubulosa) (Parmeliaceae)](tubulosa/tubulosa6a.jpg)
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