Osmunda
in botany, fern royal, osmund royal, or flowering fern; the typical genus of Osmundeæ. Six are known. One, O. regalis, the common osmund OSNABRÜCK royal, or flowering fern, is the noblest of domestic ferns; the fronds are bipinnate, fertile at the top. It is frequent in boggy places and the wet morasses of woods in the W. of Scotland and the S. of Ireland. Found also in England, Continental Europe, Asia, and Canada.
The powdered stem has been used successfully in rickets, the dose being three drachms. Sometimes this fern has been called bog onion.
OSSOLI to buffy white, with large reddish and brown markings.