<  Cetraria canadensis
Cetraria cucullata  >
Click on Characteristic name for explanation. Click on image for larger version.
Cetraria chlorophylla

Overview
PNW Range:
  West sideCommon
  East sideCommon
  Immediate coastCommon
  Alpine or subalpineOccasional
Habitat: Within the PNW, this is one of the most versatile foliose lichens, frequenting a range of habitats matched by few plants or lichens. Its habitats range from extreme oceanic sites to dry interior forests in continental climates. It tolerates both full sun and deep shade.
Substrate: Bark and wood, fallen logs, fences, roofs, rarely on rock.
Comments:
Synonymy: Tuckermannopsis chlorophylla
Cetraria chlorophylla - Soralia
Soralia
by B. McCune
1/3
Cetraria chlorophylla - Lower
Lower
by B. McCune
2/3
Cetraria chlorophylla - Habit
Habit
by B. McCune
3/3
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Sometimes
Fluffy Foliose or Strappy: Commonly
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): 1.5 (± 0.3)

Upper Surface
Upper Surface Color    (Dry) 
   Olive Black: Rarely
   Olive Brown: Commonly
   Olive Green: Rarely
   Brown: Commonly
   Tan: Commonly
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) 
   Olive Brown: Almost always
   Brown: Almost always
   Tan: Almost always
Veined Below: Never
Rhizinate Below: Sometimes
   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: Never
Soredia: Almost always
Lobules: Never