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Melanohalea elegantula

Overview
PNW Range:
  West sideUncommon
  East sideAbundant
  Immediate coastNone
  Alpine or subalpineUncommon
Habitat: A wide range of forests, savannas, and open habitats, most prominent in the more continental climates of the PNW.
Substrate: Bark and wood, less often on rock or mosses over rock.
Comments:
Synonymy: Melanelia elegantula
Melanohalea elegantula - Isidia, juvenile
Isidia, juvenile
by B. McCune
1/7
Melanohalea elegantula - Isidia
Isidia
by B. McCune
2/7
Melanohalea elegantula - Isidia
Isidia
by B. McCune
3/7
Melanohalea elegantula - Isidia
Isidia
by B. McCune
4/7
Melanohalea elegantula - Isidia
Isidia
by B. McCune
5/7
Melanohalea elegantula - Habit
Habit
by B. McCune
6/7
Melanohalea elegantula - Habit
Habit
by B. McCune
7/7
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): 2.5 (± 0.8)

Upper Surface
Upper Surface Color    (Dry) 
   Dark Green: Rarely
   Olive Brown: Almost always
   Olive Green: Almost always
   Brown: Almost always
   Tan: Rarely
Upper Surface Tomentose: Never
Upper Surface Pruinose or Scabrid: Sometimes
Upper Surface with Network of Ridges: Never
Upper Surface with Pseudocyphellae: Sometimes
   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

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

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: Rarely