<  Rhizoplaca melanophthalma
Scytinium lichenoides  >
Click on Characteristic name for explanation. Click on image for larger version.
Scytinium gelatinosum

Overview
PNW Range:
  West sideCommon
  East sideRare
  Immediate coastCommon
  Alpine or subalpineNone
Habitat: Widespread, common along streams west Cascades, infrequent east Cascades.
Substrate: Most often on mossy rock, especially near streams, rarely on mossy soil and bark.
Comments:
Synonymy: Leptogium gelatinosum
Scytinium gelatinosum - Lobules moist
Lobules moist
by B. McCune
1/6
Scytinium gelatinosum - Habit
Habit
by B. McCune
2/6
Scytinium gelatinosum - Apothecia
Apothecia
by B. McCune
3/6
Scytinium gelatinosum - Lobules dry
Lobules dry
by B. McCune
4/6
Scytinium gelatinosum - Apothecia, moist
Apothecia, moist
by B. McCune
5/6
Scytinium gelatinosum - Apothecia
Apothecia
by B. McCune
6/6
Scale: Bar=1mm unless noted
Growth Form
Fruticose: Never
Foliose: Almost always
Crustose: Never
Appressed Foliose: Sometimes
Fluffy Foliose or Strappy: Sometimes
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): 2.5 (± 1)

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

Interior
Inside (Medulla) Yellow or Orange: Never
Central Cord: Never
Hollow Stalks or Hollow Lobes: Never
Gelatinous: Almost always

Photobiont
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: Sometimes
Soredia: Never
Lobules: Commonly