on Prunus bark

white verruculose thallus, K+y C- KC- UV- P-, apothecia immersed at first soon adnate, rims thick and even, epihymenium deep red-brown “gritty” but apparently not granular only faintly POL+, amphithecium POL+ clearing in K and with large POL+ K- crystals, spores 8 per ascus ~10-12×7um

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