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Hypogymnia inactiva

PNW Range:
  West sideAbundant
  East sideUncommon
  Immediate coastCommon
  Alpine or subalpineNone
Habitat: Low to mid-elevation moist conifer forests, more shade tolerant than most other Hypogymnia species.
Substrate: Bark and wood, on both conifers and hardwoods.
Synonymy: Hypogymnia imshaugii var. inactiva
Hypogymnia inactiva - Lobe cavity
Lobe cavity
by B. McCune
Hypogymnia inactiva - Upper surface solarized
Upper surface solarized
by B. McCune
Hypogymnia inactiva - Perforate branch axil
Perforate branch axil
by B. McCune
Hypogymnia inactiva - Ascospores
by B. McCune
Hypogymnia inactiva - Habit
by B. McCune
Hypogymnia inactiva - Habit
by B. McCune
Hypogymnia inactiva - Perforate lobe tips
Perforate lobe tips
by B. McCune
Hypogymnia inactiva - KC+ red spot test
KC+ red spot test
by B. McCune
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Rarely
Fluffy Foliose or Strappy: Almost always
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): 1.75 (± 0.625)

Upper Surface
Upper Surface Color    (Dry) 
   Pale Gray Green: Almost always
   Pale Green: Rarely
   Whitish: Sometimes
   Pale Gray: Almost always
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
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: Almost always
Gelatinous: Never

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

Cortex K+ Yellow: Almost always
Medulla KC+ Orange, Red, or Pink: Almost always
Medulla UV+ Blue White: Sometimes
Sexual Reproduction
Perithecia: Never
Apothecia: Commonly
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Brown or Tan: Almost always

Asexual Reproduction
Isidia: Never
Soredia: Never
Lobules: Never