Subsquamulose lichen, on granite.
THALLUS: squamules loosely appressed, 1-2 mm wide, rich shiny brown to olive greenish in shade, margins black with white dust, darker below; section: irregular hyaline necrotic layer on top, cortex with brownish outer layer, algal layer quite thick and continuous, medulla strongly POL+ whitish not clearing in K, very thick dark brown epihymenium-like cortex of round cells below; all K- and C- and I-
APOTHECIA: black, laminal, lecideine; rim black, shiny, prominant, even smooth; disc black, epruinose, flat; exciple dark brown, not at all greenish, round cells; no mature apothecia in my sample unfortunately; paraphyses not conglutinated, very thin, somewhat branched
SPORES: didn’t find any
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|I’d Call It That||3.0||6.45||1||(jason)|
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