Cetrelia cetrarioides (Duby) W.L. Culb. & C.F. Culb.
Annotated by J. Riley, 1997.

Washington: Skamania County: Columbia River Gorge National Scenic Area: Spring Creek Hatchery - Lower Columbia River. US Fish & Wildlife Fish Hatchery. Elev. 100 ft.
45.72737° N, 121.5441° W
Coordinate Source: USFS plot database.
Site immediately on Columbia River about 2.5 miles from Bingen where high ozone readings occur.PIPO seem stressed with some red branches although most reddened whorls are older years. Site is bordered by railroad & C. R. Exposed PIPO have few lichens even though trees > 100 years. Parsul reddened, Hyp compact & deformed. Lots of sorediate Parmelias. PIPO in more protected microhabitats have many lichens but health not as good as site 1. Most oaks with plentiful lichen cover. Extensive coverage with bright orange --> yellow lichens compared to site 1. This site is much windier than the first site and gets about 5" more pptn. Slope 5%. Aspect 180°. Abundance code: 4. Shrubby papillae and fibrils. Substrate: PIPO.

L. Geiser s.n., Dec 12, 1996
With Mike Kania
OSC, Barcode: OSC-M-312255