Osmunda regalis v Čechách, omyly a skutečnost

More than a century since the first report on the fern O. regalis for the Czech flora in 1867, the circumstances of the find are elucidated and the exact locality is specified. It was situated in rather isolated position in the Lužické hory Mts at the north Bohemian periphery and, as declared by the finder himself, it disappeared shortly after the discovery. The other reported locality from the Krušné hory Mts is erroneous and the species never grew there.