Great Smoky Mountains NP March 18, 2009 I was excited to find this lichen growing along the Porter's Creek trail. I had learned about it at the Lichen Workshop. This would have been green had it been wet. Note the "vein" texture on the lobes and the small bumpy apothecia on the edges. This lichen is often used as an indicator species for air quality studies since it is highly sensitive to pollutants.
(yellow) Great Smoky Mountains Feb. 21, 2009 This pretty little yellow lichen is common on trees in the southeast. I thought it was interesting how this one was growing on another lichen. The olive-green plants nearby are small liverworts.
Lichen on a tree in the Great Smoky Mountains I've got to work on the ID of this one!
