Cladonia gracilis - Common Macrolichens of the Pacific Northwest

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Cladonia gracilis

Overview
PNW Range:
West side	Occasional
East side	Uncommon
Immediate coast	Occasional
Alpine or subalpine	Uncommon
Habitat:	Open often rocky habitats, valleys to montane, also in tundra and boreal forests northward
Substrate:	On soil, humus, soil over rock, or rotten logs.
Comments:
Synonymy:	none

Habit
by B. McCune

1/8

Podetia, split
by B. McCune

2/8

Habit
by R. Droker

3/8

Podetia
by B. McCune

4/8

Podetia, tips
by B. McCune

5/8

Habit
by B. McCune

6/8

Podetia, wall
by B. McCune

7/8

Cups
by B. McCune

8/8

❮ ❯

Scale: Bar=1mm unless noted

Upper Surface
Upper Surface Color (Dry)
Pale Gray Green:	Almost always
Pale Green:	Almost always
Olive Brown:	Sometimes
Olive Green:	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

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

Photobiont
Green Algae Primary Photobiont:	Almost always
Cyanobacteria Primary Photobiont:	Never
Internal Cephalodia:	Never
External Cephalodia:	Never

Chemistry
Medulla P+ Orange or Red:	Almost always