Rhizoplaca chrysoleuca - Common Macrolichens of the Pacific Northwest

< Ramalina thrausta

Rhizoplaca melanophthalma >

Click on Characteristic name for explanation. Click on image for larger version.

Rhizoplaca chrysoleuca

Overview
PNW Range:
West side	Uncommon
East side	Common
Immediate coast	None
Alpine or subalpine	Uncommon
Habitat:	Exposed to somewhat sheltered rock outcrops and talus, from low to high elevations in suboceanic to continental climates.
Substrate:	Noncalcareous rock.
Comments:
Synonymy:	none

Rhizoplaca chrysoleuca - Habit

Habit
by R. Droker

1/2

Rhizoplaca chrysoleuca - Habit

Habit
by B. McCune

2/2

❮ ❯

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
Whitish:	Sometimes
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:	Commonly
Cortex KC+ Yellow:	Commonly
Medulla P+ Yellow:	Sometimes

Sexual Reproduction
Perithecia:	Never
Apothecia:	Almost always
Mazaedium:	Never
Disk Color (Dry)
Disk Orange:	Almost always
Disk Yellow:	Sometimes
Disk Pink:	Almost always
Disk Brown or Tan:	Sometimes

Asexual Reproduction
Isidia:	Never
Soredia:	Never
Lobules:	Never