Search for: [Subject and Keywords = royal fern] OR [Subject and Keywords = długosz królewski] OR [Subject and Keywords = Osmunda regalis] OR [Title = The localities of the royal fern, Osmunda regalis, in the province of Łódź] OR [Title = Stanowisko długosza królewskiego Osmunda regalis w województwie łódzkim] OR [Creator = Kurowski, Józef Krzysztof]