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foliose lichen, on bright exposed dogwood bark by canal (Piscidia piscipula)
THALLUS: light gray, not spotted, lobes 0.5-1.0 mm, closely appressed, imbricate, convex, fanned tips, verrucose in center, white below w/ tiny white rhizines
APOTHECIA: up to 1 mm wide, slightly convex to slightly concave, heavily white pruinose

Species Lists


This one appears to be highly maculate, however the white mottling is from verrucae being worn by wind and elements. The tips are clearly emaculate (up close — not clear in photo).
darker one on the right is Physcia neogaea, lighter more closely-appressed one on left is Dirinaria purpurascens

Proposed Names

87% (1)
Used references: R. C. Harris’s informal keys

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= Observer’s choice
= Current consensus


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