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Scytinium palmatum

PNW Range:
  West sideCommon
  East sideRare
  Immediate coastCommon
  Alpine or subalpineNone
Habitat: Roadcuts, roadsides, poorly revegetated areas in clearcuts, outcrops and talus areas; low to mid elevations; populations on bark tend to be in hardwood stands at low elevations.
Substrate: Soil, gravel, rocks, mosses over soil or rock, rarely bark.
Synonymy: Leptogium palmatum
Scytinium palmatum - Habit
by R. Droker
Scytinium palmatum - Habit
by R. Droker
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Almost always
Foliose: Almost always
Crustose: Never
Appressed Foliose: Never
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): 8 (± 4)

Upper Surface
Upper Surface Color    (Dry) 
   Pale Gray: Sometimes
   Dark Gray: Almost always
   Black: Rarely
   Brown: Almost always
Upper Surface Tomentose: Never
Upper Surface Pruinose or Scabrid: Never
Upper Surface with Network of Ridges: Commonly
Upper Surface with Pseudocyphellae: Never
   Upper Surface with Holes into Cavity: Never
Cilia on Margins: Never
Lower Surface (Foliose)
Lower Surface Color    (Dry) 
   Dark Gray: Almost always
   Black: Almost always
   Brown: 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: Never
Gelatinous: Almost always

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

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