Dryopteris goldieana
dryoptère de Goldie, Goldie's wood fern
monomorphic, dying back in winter, 35–120 × 15–40 cm.
1/3 length of leaf, scaly at base;
scales scattered, dark, glossy brown to nearly black, with pale border.
green, often white-mottled at tip, ovate, tapering abruptly at apex, pinnate-pinnatifid to 2-pinnate at base, herbaceous, not glandular.
parallel to plane of blade, ovate-lanceolate, broadest above base;
basal pinnae broadly oblong-lanceolate, slightly reduced, basal pinnule equal to adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal;
pinnule margins crenulate or serrate.
and axes lacking glands.
nearer midvein than margin.
= 82.
Dryopteris goldieana
Dryopteris goldieana is diploid and is one of the parents of D. celsa and of D. clintoniana. Dryopteris goldieana hybridizes with five species. Hybrids can be identified by the glossy dark scales and large blade size. A remarkable additional hybrid (× Dryostichum singulare W. H. Wagner), involving this species and Polystichum lonchitis, is known from Gray and Simcoe counties, Ontario. It is intermediate between the parents and is sterile (W. H. Wagner Jr., F. S. Wagner et al. 1992).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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