Inactive Tube Lichen
Hypogymnia inactiva
![The upper side of Inactive Tube Lichen: Hypogymnia inactiva](inactiva/inactiva1a.jpg)
A close-up of the upper surfaces of what may be inactive tube lichen (Hypogymnia inactiva) as seen on a coniferous branch found along the Eagle Creek Trail, Columbia River Gorge National Scenic Area.................March 26, 2012.
![The ventral surfaces of Inactive Tube Lichen: Hypogymnia inactiva](inactiva/inactiva1b.jpg)
A close-up of the lower surfaces of what may be inactive tube lichen (Hypogymnia inactiva) as seen on a coniferous branch found along the Eagle Creek Trail, Columbia River Gorge National Scenic Area.................March 26, 2012.
- ![Ventral surface of Inactive Tube Lichen: Hypogymnia inactiva](inactiva/inactiva2b.jpg)
What may be inactive tube lichen (H. inactiva) as seen on a coniferous branch along the Wahclella Falls Trail, Columbia River Gorge National Scenic Area............March 7, 2013. If not this species, then it might be H. imshaugii.
Paul Slichter