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Umbilicaria angulata

Overview
PNW Range:
  West sideOccasional
  East sideRare
  Immediate coastUncommon
  Alpine or subalpineUncommon
Habitat: Foothills to mountains, rock outcrop areas and talus.
Substrate: Rock (noncalcareous).
Comments:
Synonymy: none
Umbilicaria angulata - Habit
Habit
by B. McCune
1/10
Umbilicaria angulata - Rhizines
Rhizines
by B. McCune
2/10
Umbilicaria angulata - Lower
Lower
by B. McCune
3/10
Umbilicaria angulata - Lower
Lower
by B. McCune
4/10
Umbilicaria angulata - Lower
Lower
by B. McCune
5/10
Umbilicaria angulata - Spores
Spores
by B. McCune
6/10
Umbilicaria angulata - Apothecia
Apothecia
by B. McCune
7/10
Umbilicaria angulata - Habit
Habit
by B. McCune
8/10
Umbilicaria angulata - Trabeculae
Trabeculae
by B. McCune
9/10
Umbilicaria angulata - Upper upper
Upper upper
by B. McCune
10/10
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Sometimes
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): 10 (± 5)

Upper Surface
Upper Surface Color    (Dry) 
   Brown: Almost always
   Tan: 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) 
   Black: Almost always
   Brown: Rarely
Veined Below: Never
Rhizinate Below: Almost always
   Rhizines Squarrose: Never
Tomentose Below: Never
Cyphellae: Never
Pseudocyphellae Below: Never
Papillae Below: Commonly

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: Sometimes
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Black: Almost always

Asexual Reproduction
Isidia: Never
Soredia: Never
Lobules: Never