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Upper Thallus Surface
upper surface color - overall*
bright white (atranorin white; vermicularis-white)
whitish grey
greenish grey
green
brownish grey
greyish green
upper surface pruina - presence/absence*
present
absent
upper surface pruina - abundance*
abundant
scarce
Lower Thallus Surface & Attachment
lower surface color - overall*
white
black
brownish black
grey
brown
Vegetative Propagules
isidia - presence/absence*
present
absent
soralia - presence/absence*
present
absent
Thallus Margin & Appendages
cilia - presence/absence*
absent
present
Roger Rosentreter & Ann DeBolt
Species Count: 5
Parmeliaceae
Physciaceae