[Lichens of the Columbia River Gorge of Oregon and Washington]

Antlered perfume as seen on an Oregon white oak (Quercus garryana) branch in the Klickitat Wildlife Area between the Glenwood-Goldendale Highway and Canyon Creek..........April 6, 2013. This species has a tonal difference in color between the upper and lower thallus (a light blue-green above and a creamy white below) which is not readily apparent here. The similar farinose cartilage lichen (Ramalina farinacea) has the same color tone on both upper and lower surfaces of the thallus.