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Physcia adscendens

Overview
PNW Range:
  West sideCommon
  East sideCommon
  Immediate coastCommon
  Alpine or subalpineUncommon
Habitat: Low to mid elevation forests and open shrubby areas, common in agricultural, urban, and suburban areas; partial shade to full sun.
Substrate: Bark (especially hardwoods and shrubs but also occasionally on conifers), rarely on rock.
Comments:
Synonymy: none
Physcia adscendens - Lobe tips
Lobe tips
by B. McCune
1/3
Physcia adscendens - Lobe tips
Lobe tips
by B. McCune
2/3
Physcia adscendens - Lobe tips
Lobe tips
by B. McCune
3/3
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Sometimes
Fluffy Foliose or Strappy: Commonly
Dangling Hair: Never
Erect Hair: Never
Appressed Hair: Never
Stalks With Squamules: Never
Stalks: Never
Squamules: Never
Single Holdfast: Never
Dangling Nets: Never
Lobe Width (mm): 0.5 (± 0.25)

Upper Surface
Upper Surface Color    (Dry) 
   Pale Gray Green: Almost always
   Pale Green: Rarely
   Whitish: Almost always
   Pale Gray: Sometimes
Upper Surface Tomentose: Never
Upper Surface Pruinose or Scabrid: Never
Upper Surface with Network of Ridges: Never
Upper Surface with Pseudocyphellae: Never
   Upper Surface with Holes into Cavity: Never
Cilia on Margins: Almost always
Lower Surface (Foliose)
Lower Surface Color    (Dry) 
   Whitish: Almost always
   Tan: Almost always
Veined Below: Never
Rhizinate Below: Almost always
   Rhizines Squarrose: Never
Tomentose Below: Never
Cyphellae: Never
Pseudocyphellae Below: Never
Papillae Below: Never

Interior
Inside (Medulla) Yellow or Orange: Never
Central Cord: Never
Hollow Stalks or Hollow Lobes: Never
Gelatinous: Never

Photobiont
Green Algae Primary Photobiont: Almost always
Cyanobacteria Primary Photobiont: Never
Internal Cephalodia: Never
External Cephalodia: Never

Chemistry
Cortex K+ Yellow: Almost always
Sexual Reproduction
Perithecia: Never
Apothecia: Rarely
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Black: Almost always

Asexual Reproduction
Isidia: Never
Soredia: Almost always
Lobules: Never