English: The black discs are apothecia of the lichenicolous (lichen-dwelling) fungus Dactylospora parasitica, found growing on the lichen Pertusaria albescens, which iteslf was growing on bark of Quercus chrysolepis. See Mushroom Observer page for more observational details.
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The fungus ''Dactylospora parasitica'', found growing on the lichen ''Pertusaria albescens'', which itself was growing on on the bark of ''Quercus chrysolepis''