from The Century Dictionary.
- noun A large genus of polypodiaceous ferns, type of the tribe Dryopterideæ with fronds pinnate to tripinnate or dissected, the venation usually free, and the sori roundish with superior cordato-reniform indusia fixed at the sinus.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun large widespread genus of medium-sized terrestrial ferns; in some classification systems placed in Polypodiaceae
Sorry, no etymologies found.
This autumn fern, dryopteris erythrosora ‘Brilliance’ is looking colorful and fresh.
This is the Oak Fern of the herbalists; not that of modern botanists (_Polypodium dryopteris_); it being held that such Fern plants as grew upon the roots of an oak tree were of special medicinal powers, _Quod nascit super radices quercûs est efficacius_.