Adnate to loose; marginal and surface soralia; medulla pale to orange-yellow; upturned, spoon-shaped lobe tips; spattered pruina on lobe tips; white-tipped rhizines visible from above; cortex UV-. Compare with P. subcinerea, lobe tips generally plane or turned down; rhizines usually black to tips and not easily visible; UV+ golden yellow.
Similar species: Teloschistales
By Gary B
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Uploaded Mar 18, 2019. Captured Mar 20, 2014 15:12 in 4408 Miller Rd, Barnum, MN 55707, USA.