Difference between revisions of "Dryopteris fragrans"
Gen. Fil. plate 9. 1834.
Common names: Fragrant wood fern dryoptère fragrante
Basionym: Polypodium fragrans Linnaeus
Synonyms: Dryopteris fragrans var. remotiuscula Komarov
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Leaves </b>monomorphic, green through winter, 6–40 × 1–6 cm, old leaves persistent as gray or brown conspicuous clump at plant base (only in this species). <b>Petiole</b> 1/3 length of leaf, scaly throughout; scales dense, brown to red-brown. <b>Blades</b> green, linear-lanceolate, pinnate-pinnatifid to 2-pinnate, papery, densely scaly (only in this species) abaxially, glandular, aromatic when handled (only in this species). <b>Pinnae</b> ± in plane of blade, linear-oblong; basal pinnae linear-oblong, much reduced, basal pinnules longer than adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal; pinnule margins crenately toothed. <b>Sori</b> midway between midvein and margin of segments. <b>Indusia</b> glandular. <b>2n</b> = 82.</span><!-- |
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|genus=Dryopteris | |genus=Dryopteris | ||
|species=Dryopteris fragrans | |species=Dryopteris fragrans | ||
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Revision as of 13:24, 27 July 2019
Leaves monomorphic, green through winter, 6–40 × 1–6 cm, old leaves persistent as gray or brown conspicuous clump at plant base (only in this species). Petiole 1/3 length of leaf, scaly throughout; scales dense, brown to red-brown. Blades green, linear-lanceolate, pinnate-pinnatifid to 2-pinnate, papery, densely scaly (only in this species) abaxially, glandular, aromatic when handled (only in this species). Pinnae ± in plane of blade, linear-oblong; basal pinnae linear-oblong, much reduced, basal pinnules longer than adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal; pinnule margins crenately toothed. Sori midway between midvein and margin of segments. Indusia glandular. 2n = 82.
Habitat: Shaded cliffs and talus, often of limestone
Elevation: 50–1800 m
Distribution
Greenland, Alta., B.C., Man., N.B., Nfld., N.W.T., N.S., Ont., Que., Sask., Yukon, Alaska, Maine, Mich., Minn., N.H., N.Y., Vt., Wis., Europe in n Finland, Asia in n, nw former Soviet republics.
Discussion
Dryopteris fragrans is a northern species and is not closely related to the other species in North America. The only hybrid known to involve D. fragrans is with D. marginalis, producing D. × algonquinensis D. Britton.
Selected References
None.
Lower Taxa
None.