Xanthomendoza fallax - Common Macrolichens of the Pacific Northwest

< Usnea subgracilis

Xanthomendoza fulva >

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

Xanthomendoza fallax

Overview
PNW Range:
West side	Rare
East side	Common
Immediate coast	None
Alpine or subalpine	None
Habitat:	Mostly open to somewhat sheltered, often nutrient-enriched sites.
Substrate:	Bark (especially Populus and other broad-leaved spp), occasionally on rock.
Comments:
Synonymy:	Xanthoria fallax

Xanthomendoza fallax - Habit

Habit
by B. McCune

1/3

Xanthomendoza fallax - Habit

Habit
by B. McCune

2/3

Xanthomendoza fallax - Habit

Habit
by B. McCune

3/3

❮ ❯

Scale: Bar=1mm unless noted

Growth Form
Fruticose:	Never
Foliose:	Almost always
Crustose:	Never
Appressed Foliose:	Almost always
Fluffy Foliose or Strappy:	Rarely
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):	0.75 (± 0.3)

Upper Surface
Upper Surface Color (Dry)
Pale Green:	Rarely
Dark Green:	Rarely
Orange:	Almost always
Yellow:	Almost always
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)
Orange:	Almost always
Yellow:	Almost always
Whitish:	Almost always
Veined Below:	Never
Rhizinate Below:	Almost always
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

Chemistry
Cortex K+ Purple or Red:	Almost always

Sexual Reproduction
Perithecia:	Never
Apothecia:	Rarely
Mazaedium:	Never
Disk Color (Dry)
Disk Orange:	Almost always
Disk Yellow:	Rarely

Asexual Reproduction
Isidia:	Never
Soredia:	Almost always
Lobules:	Never