A microlichen with a preference for old forests with a high quantity of standing dead wood. It meets optimal conditions on dry rotting wood of old trees, snags and slow-rotting stumps, as well as on larger fallen trunks, mainly in forests dominated by firs and beeches. It can also be found in oak, beech or spruce forests. In addition to wood, it also grows on bark of oaks and at bases of older spruces and firs. It is usually found only in a pycnidial stage, but under optimal conditions it can also richly fructify. Distribution of this species in the Czech Republic relatively faithfully overlaps with the occurrence of well-preserved, old-growth forests.taxonomic classification: most frequented synonyms:Catillaria alba
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