Phaeophyscia endophoenicea is similar to the nitrophilous P. orbicularis, from which it is distinguished by marginal soralia and often orange medulla. However, the characteristic red pigment is often produced only locally or in small quantities, so juvenile thalli of the two species are not reliably distinguishable. P. endophoenicea is a typical forest lichen. It prefers natural forests from lowlands to mountains where it grows on various deciduous trees. It may also be found in deciduous managed forests or parks where it usually grows on mossy or nutrient-enriched bark. In Europe, it is widely distributed but not common species.taxonomic classification:
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