Common Macrolichens of the PNW
Home
Species List
Identification Key
Characteristics
Color Chart
Project Page
About
<
Physcia tenella
Physconia enteroxantha
>
Click on Characteristic name for explanation. Click on image for larger version.
Physconia americana
Overview
PNW Range:
West side
Occasional
East side
Uncommon
Immediate coast
Uncommon
Alpine or subalpine
Rare
Habitat:
Common west Cascades in broad agricultural valleys.
Substrate:
On bark.
Comments:
Synonymy:
none
Habit
by B. McCune
1/2
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
:
Never
Dangling Nets
:
Never
Lobe Width
(mm):
2 (± 1)
Upper Surface
Upper Surface Color
(Dry)
Whitish
:
Almost always
Pale Gray
:
Almost always
Brown
:
Almost always
Tan
:
Almost always
Upper Surface Tomentose
:
Never
Upper Surface Pruinose or Scabrid
:
Almost always
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)
Black
:
Almost always
Brown
:
Almost always
Veined Below
:
Never
Rhizinate Below
:
Almost always
Rhizines Squarrose
:
Almost always
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
Sexual Reproduction
Perithecia
:
Never
Apothecia
:
Commonly
Mazaedium
:
Never
Disk Color
(Dry)
Disk Black
:
Almost always
Asexual Reproduction
Isidia
:
Never
Soredia
:
Never
Lobules
:
Sometimes
