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Platismatia glauca  >
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Pilophorus nigricaulis

Overview
PNW Range:
  West sideRare
  East sideNone
  Immediate coastNone
  Alpine or subalpineRare
Habitat: Cool, moist, rocky slopes, often north-facing, usually in the open but where sheltered by surrounding topography such as steep narrow valleys.
Substrate: Noncalcareous rock.
Comments:
Synonymy: none
Pilophorus nigricaulis - Habit
Habit
by R. Droker
1/6
Pilophorus nigricaulis - Pseudopodetia
Pseudopodetia
by B. McCune
2/6
Pilophorus nigricaulis - Primary thallus
Primary thallus
by B. McCune
3/6
Pilophorus nigricaulis - Primary thallus
Primary thallus
by B. McCune
4/6
Pilophorus nigricaulis - Habit
Habit
by B. McCune
5/6
Pilophorus nigricaulis - Habit
Habit
by R. Droker
6/6
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Almost always
Foliose: Never
Crustose: Never
Appressed Foliose: Never
Fluffy Foliose or Strappy: Never
Dangling Hair: Never
Erect Hair: Never
Appressed Hair: Never
Stalks With Squamules: Almost always
Stalks: Almost always
Squamules: Sometimes
Single Holdfast: Never
Dangling Nets: Never

Upper Surface
Upper Surface Color    (Dry) 
   Pale Green: Rarely
   Whitish: Almost always
   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

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: Almost always

Chemistry
Cortex K+ Yellow: Almost always
Medulla P+ Orange or Red: Sometimes
Medulla P+ Yellow: Rarely
Medulla K+ Yellow: Sometimes
Sexual Reproduction
Perithecia: Never
Apothecia: Almost always
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Black: Almost always

Asexual Reproduction
Isidia: Never
Soredia: Never
Lobules: Never