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Melanelixia glabratula

PNW Range:
  West sideAbundant
  East sideCommon
  Immediate coastAbundant
  Alpine or subalpineRare
Habitat: Common as an epiphyte on hardwoods west Cascades in low to mid elevation forests and more open habitats; east Cascades more often on rock in shaded habitats in the mountains.
Substrate: Bark (mainly hardwood trees and shrubs) and rock
Synonymy: Melanelia fuliginosa, Melanelixia fuliginosa
Melanelixia glabratula - Isidia
by B. McCune
Melanelixia glabratula - Habit
by B. McCune
Melanelixia glabratula - 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: Never
Dangling Nets: Never
Lobe Width (mm): 2 (± 0.8)

Upper Surface
Upper Surface Color    (Dry) 
   Dark Green: Rarely
   Olive Brown: Almost always
   Olive Green: Almost always
   Brown: Almost always
   Tan: Sometimes
Upper Surface Tomentose: Never
Upper Surface Pruinose or Scabrid: Never
Upper Surface with Network of Ridges: Never
Upper Surface with Pseudocyphellae: Rarely
   Upper Surface with Holes into Cavity: Never
Cilia on Margins: Never
Lower Surface (Foliose)
Lower Surface Color    (Dry) 
   Black: Almost always
   Brown: Commonly
   Tan: Commonly
Veined Below: Never
Rhizinate Below: Almost always
   Rhizines Squarrose: 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

Medulla C+ Orange, Red, or Pink: Almost always
Medulla KC+ Orange, Red, or Pink: Almost always
Sexual Reproduction
Perithecia: Never
Apothecia: Rarely
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Brown or Tan: Almost always

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