Difference between revisions of "Athyrium filix-femina var. angustum"
Edinburgh New Philos. J. n.s. 19: 115. 1864.
Common names: Northern lady fern
Basionym: Aspidium angustum (Willdenow) C. Presl
Synonyms: Athyrium angustum unknownAthyrium filix-femina subsp. angustum (Willdenow) ClausenAthyrium filix-femina var. michauxii (Sprengel) Farwell
Treatment appears in FNA Volume 2.
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Petiole </b>(7–)15–55 cm; scales brown to dark brown, linear-lanceolate, 8(–10) × 2 mm. <b>Blade</b> elliptic, 2-pinnatifid to 2-pinnate, (20–)30–75 × (5–)10–35 cm, moderately narrowed proximally, broadest near or just below middle, apex acuminate. <b>Pinnae</b> short-stalked or sessile, oblong-lanceolate. <b>Pinnules</b> decurrent onto costal wing or sessile, linear to oblong, base unequally cuneate, apex obtuse to acute or in larger leaves acuminate, lobed halfway or more to costules. <b>Rachis</b>, costae, and costules glabrous or with pale glands. <b>Sori</b> straight, less frequently hooked at distal end or horseshoe-shaped; sporangial stalks bearing glandular hairs; indusia irregularly dentate, ± ciliate. <b>Spores</b> yellow or brown. <b>2n</b> = 80.</span><!-- |
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|publication year=1864 | |publication year=1864 | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna- | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_352.xml |
|genus=Athyrium | |genus=Athyrium | ||
|species=Athyrium filix-femina | |species=Athyrium filix-femina | ||
|variety=Athyrium filix-femina var. angustum | |variety=Athyrium filix-femina var. angustum | ||
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Revision as of 13:17, 27 July 2019
Petiole (7–)15–55 cm; scales brown to dark brown, linear-lanceolate, 8(–10) × 2 mm. Blade elliptic, 2-pinnatifid to 2-pinnate, (20–)30–75 × (5–)10–35 cm, moderately narrowed proximally, broadest near or just below middle, apex acuminate. Pinnae short-stalked or sessile, oblong-lanceolate. Pinnules decurrent onto costal wing or sessile, linear to oblong, base unequally cuneate, apex obtuse to acute or in larger leaves acuminate, lobed halfway or more to costules. Rachis, costae, and costules glabrous or with pale glands. Sori straight, less frequently hooked at distal end or horseshoe-shaped; sporangial stalks bearing glandular hairs; indusia irregularly dentate, ± ciliate. Spores yellow or brown. 2n = 80.
Habitat: Moist woods, swamps, thickets
Elevation: 0–1100 m
Distribution
Greenland, Man., N.B., Nfld., N.S., Ont., P.E.I., Que., Sask., Conn., Del., Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mo., Nebr., N.H., N.J., N.Y., N.C., N.Dak., Ohio, Pa., R.I., S.Dak., Vt., Va., W.Va., Wis.
Discussion
Selected References
None.
Lower Taxa
None.