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Adlerfarn Lindberg. de Adlerfarn bei Lindberg own Konrad Lackerbeck Pteridium aquilinum Dennstaedtiaceae in Bavaria Pteridium aquilinum Dennstaedtiaceae in June Pteridium aquilinum Polypodiales in Bavaria in June Pteridium aquilinum Polypodiales in Lower Bavaria Pteridium aquilinum Flora of Lindberg Pteridium aquilinum Flora of