Observation 87089: Lichen P. Micheli

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Proposed Names

86% (1)
Recognized by sight: also on bare rock and similar to the former, maybe the same?
56% (1)
Recognized by sight: cottony sterile crust growing on sheltered rock face

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= Observer’s choice
= Current consensus

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Another difficult genus
By: Jason Hollinger (jason)
2012-01-28 14:06:54 PST (-0800)

Color and texture of thallus can get you far, but chemistry is required in many cases, often nothing short of TLC or HPLC, thanks to the lack of sexual characters.