Diarthonis spadicea is a species of shady and humid forest communities in southern and central Norway. It often grows near the bases of deciduous and coniferous trees. Diarthonis spadicea is characterized by large brownish black, maculate apothecia on an olive-grey thallus with trentepohlioid photobiont. The colorless spores are 1-septate.
Diarthonis spadicea
(Leight.) Frisch, Ertz, Coppins & P.F.Cannon
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Andreas Frisch
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NTNU Vitenskapsmuseet
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Håkon Holien
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NORD Universitet
