Common Macrolichens of the PNW
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Rhizoplaca chrysoleuca
Scytinium gelatinosum
>
Click on Characteristic name for explanation. Click on image for larger version.
Rhizoplaca melanophthalma
Overview
PNW Range:
West side
Uncommon
East side
Common
Immediate coast
None
Alpine or subalpine
Uncommon
Habitat:
Exposed to sheltered rock, at all elevations.
Substrate:
Rock, rarely loose on gravelly soil.
Comments:
Synonymy:
none
Habit
by B. McCune
1/3
Habit
by B. McCune
2/3
Habit
by R. Droker
3/3
❮
❯
Scale: Bar=1mm unless noted
Growth Form
Fruticose
:
Never
Foliose
:
Almost always
Crustose
:
Never
Appressed Foliose
:
Almost always
Fluffy Foliose or Strappy
:
Never
Dangling Hair
:
Never
Erect Hair
:
Never
Appressed Hair
:
Never
Stalks With Squamules
:
Never
Stalks
:
Never
Squamules
:
Never
Single Holdfast
:
Commonly
Dangling Nets
:
Never
Lobe Width
(mm):
6 (± 3)
Upper Surface
Upper Surface Color
(Dry)
Pale Yellow Green
:
Almost always
Pale Green
:
Almost always
Olive Green
:
Rarely
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
Black
:
Commonly
Brown
:
Almost always
Tan
:
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
:
Never
Photobiont
Green Algae Primary Photobiont
:
Almost always
Cyanobacteria Primary Photobiont
:
Never
Internal Cephalodia
:
Never
External Cephalodia
:
Never
Chemistry
Usnic Acid
:
Almost always
Cortex KC+ Yellow
:
Almost always
Medulla P+ Yellow
:
Commonly
Sexual Reproduction
Perithecia
:
Never
Apothecia
:
Almost always
Mazaedium
:
Never
Disk Color
(Dry)
Disk Pale Greenish
:
Almost always
Disk Black
:
Almost always
Disk Brown or Tan
:
Almost always
Asexual Reproduction
Isidia
:
Never
Soredia
:
Never
Lobules
:
Never
