: Arthonia ilicina.

Arthonia ilicina grows on smooth bark of deciduous trees in the boreo-nemoral rainforests in Rogaland and Vestland. It is characterized by brownish black rounded to shortly elongated apothecia on a whitish to cream-yellow thallus with trentepohlioid photobiont. The spores are pale brown and finely warted, 5–6(–7)-transversely septa and have an enlarged apical cell.

Arthonia ilicina Taylor
Creative Commons Attribution | Andreas Frisch | NTNU Vitenskapsmuseet | Håkon Holien | NORD Universitet
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