conifer blueing bracket fungus, oligoporus caesius (postia caesia), growing on a spruce stump in romania.

autumn mushroom beautiful beauty blue blueing bluish bracket bracket fungus brown caesia caesius close-up closeup color conifer conifer blueing environment forest formitopsidaceae fungi fungus growing tree green light macro mushrooms mycology natural nature oligoporus oligoporus plant polypore postia postia spruce stump wood wild wood