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Umbilicaria virginis

Overview
PNW Range:
  West sideUncommon
  East sideOccasional
  Immediate coastNone
  Alpine or subalpineAbundant
Habitat: Common on exposed or sheltered outcrops and talus at mid to high elevations; at high elevations it is often the dominant Umbilicaria on steep sheltered rock faces.
Substrate: Rock (noncalcareous).
Comments:
Synonymy: none
Umbilicaria virginis - Apothecia
Apothecia
by B. McCune
1/9
Umbilicaria virginis - Rhizines
Rhizines
by B. McCune
2/9
Umbilicaria virginis - Rhizines
Rhizines
by B. McCune
3/9
Umbilicaria virginis - Spores
Spores
by B. McCune
4/9
Umbilicaria virginis - Lower
Lower
by B. McCune
5/9
Umbilicaria virginis - Habit
Habit
by B. McCune
6/9
Umbilicaria virginis - Habit
Habit
by B. McCune
7/9
Umbilicaria virginis - Upper surface, ridges
Upper surface, ridges
by B. McCune
8/9
Umbilicaria virginis - Rhizines
Rhizines
by B. McCune
9/9
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Commonly
Fluffy Foliose or Strappy: Sometimes
Dangling Hair: Never
Erect Hair: Never
Appressed Hair: Never
Stalks With Squamules: Never
Stalks: Never
Squamules: Never
Single Holdfast: Almost always
Dangling Nets: Never
Lobe Width (mm): 15 (± 7)

Upper Surface
Upper Surface Color    (Dry) 
   Pale Gray: Almost always
   Dark Gray: Almost always
   Brown: Sometimes
   Tan: Sometimes
Upper Surface Tomentose: Never
Upper Surface Pruinose or Scabrid: Commonly
Upper Surface with Network of Ridges: Commonly
Upper Surface with Pseudocyphellae: Never
   Upper Surface with Holes into Cavity: Never
Cilia on Margins: Never
Lower Surface (Foliose)
Lower Surface Color    (Dry) 
   Whitish: Sometimes
   Brown: Commonly
   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
Medulla C+ Orange, Red, or Pink: Almost always
Medulla KC+ Orange, Red, or Pink: Almost always
Medulla UV+ Blue White: Rarely
Sexual Reproduction
Perithecia: Never
Apothecia: Rarely
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Black: Almost always

Asexual Reproduction
Isidia: Never
Soredia: Never
Lobules: Never