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Cladonia furcata

PNW Range:
  West sideCommon
  East sideOccasional
  Immediate coastCommon
  Alpine or subalpineRare
Habitat: Moist coastal forests at low to mid elevations, frequent on partly shaded roadcuts.
Substrate: On soil, moss, and humus, occasionally on rotten wood or tree bases.
Synonymy: none
Cladonia furcata - K test
K test
by B. McCune
Cladonia furcata - Habit
by R. Droker
Cladonia furcata - Habit
by B. McCune
Cladonia furcata - Podetia surfaces
Podetia surfaces
by B. McCune
Cladonia furcata - Apothecia
by B. McCune
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 Gray Green: Almost always
   Pale Green: Almost always
   Olive Brown: Sometimes
   Olive Green: Almost always
   Brown: Sometimes
   Tan: Sometimes
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) 
   Whitish: Almost always
   Pale Gray: Sometimes
Veined 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

Medulla P+ Orange or Red: Almost always
Sexual Reproduction
Perithecia: Never
Apothecia: Sometimes
   Mazaedium: Never
Disk Color    (Dry) 
   Disk Brown or Tan: Almost always

Asexual Reproduction
Isidia: Never
Soredia: Never
Lobules: Never

Cladonia Specific
Cup forming: Never
Richly Branched: Commonly
Stalks With Melanotic Base: Never
Branch Axils Or Cups Open: Almost always