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Rhizoplaca chrysoleuca

PNW Range:
  West sideUncommon
  East sideCommon
  Immediate coastNone
  Alpine or subalpineUncommon
Habitat: Exposed to somewhat sheltered rock outcrops and talus, from low to high elevations in suboceanic to continental climates.
Substrate: Noncalcareous rock.
Synonymy: none
Rhizoplaca chrysoleuca - Habit
by R. Droker
Rhizoplaca chrysoleuca - Habit
by B. McCune
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Almost always
Fluffy Foliose or Strappy: Never
Dangling Hair: Never
Erect Hair: Never
Appressed Hair: Never
Stalks With Squamules: Never
Stalks: Never
Squamules: Never
Single Holdfast: Commonly
Dangling Nets: Never
Lobe Width (mm): 6 (± 3)

Upper Surface
Upper Surface Color    (Dry) 
   Pale Yellow Green: Almost always
   Pale Green: Almost always
   Whitish: Sometimes
   Olive Green: Rarely
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: Never
Lower Surface (Foliose)
Lower Surface Color    (Dry) 
   Whitish: Almost always
   Black: Commonly
   Brown: Almost always
   Tan: Almost always
Veined Below: Never
Rhizinate Below: Never
Tomentose Below: Never
Cyphellae: Never
Pseudocyphellae Below: Never
Papillae Below: Never

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

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

Usnic Acid: Commonly
Cortex KC+ Yellow: Commonly
Medulla P+ Yellow: Sometimes
Sexual Reproduction
Perithecia: Never
Apothecia: Almost always
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Orange: Almost always
   Disk Yellow: Sometimes
   Disk Pink: Almost always
   Disk Brown or Tan: Sometimes

Asexual Reproduction
Isidia: Never
Soredia: Never
Lobules: Never