Difference between revisions of "Athyrium filix-femina var. cyclosorum"
Dist. Crypt. Vasc. Ross. 41. 1845.
Common names: Northwestern lady fern
Basionym: Athyrium filix-femina subsp. cyclosorum (Ruprecht) C. Christensen
Synonyms: Athyrium alpestre var. cyclosorum (Ruprecht) T. MooreAthyrium filix-femina var. sitchense Ruprecht
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>15–45(–60) cm, base densely scaly; scales brown or dark brown, lanceolate or ovate-lanceolate, (7–)10–20 × (1–)2–5 mm, ± crisped. <b>Blade</b> elliptic to oblanceolate, 1–2-pinnate-pinnatifid, 25–120 × 10–50 cm, gradually narrowed proximally, broadest at or just above middle, apex acuminate. <b>Pinnae</b> very short-stalked or sessile, linear-oblong or oblong, apex acuminate. <b>Pinnules</b> sessile, narrowly deltate or oblong-lanceolate, base basiscopically broadly cuneate, acroscopically truncate, ± auriculate, apex obtuse to ± acute. <b>Rachis</b>, costae, and costules glabrous or with scales or pale glands. <b>Sori</b> round to elliptic, hooked at distal end, or horseshoe-shaped, medial to supramedial; indusia long-ciliate with nonglandular marginal hairs as long as or longer than width of indusia. <b>Spores</b> yellow. <b>2n</b> = 80.</span><!-- |
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|publication year=1845 | |publication year=1845 | ||
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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_87.xml |
|genus=Athyrium | |genus=Athyrium | ||
|species=Athyrium filix-femina | |species=Athyrium filix-femina | ||
|variety=Athyrium filix-femina var. cyclosorum | |variety=Athyrium filix-femina var. cyclosorum | ||
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Revision as of 14:28, 27 July 2019
Petiole 15–45(–60) cm, base densely scaly; scales brown or dark brown, lanceolate or ovate-lanceolate, (7–)10–20 × (1–)2–5 mm, ± crisped. Blade elliptic to oblanceolate, 1–2-pinnate-pinnatifid, 25–120 × 10–50 cm, gradually narrowed proximally, broadest at or just above middle, apex acuminate. Pinnae very short-stalked or sessile, linear-oblong or oblong, apex acuminate. Pinnules sessile, narrowly deltate or oblong-lanceolate, base basiscopically broadly cuneate, acroscopically truncate, ± auriculate, apex obtuse to ± acute. Rachis, costae, and costules glabrous or with scales or pale glands. Sori round to elliptic, hooked at distal end, or horseshoe-shaped, medial to supramedial; indusia long-ciliate with nonglandular marginal hairs as long as or longer than width of indusia. Spores yellow. 2n = 80.
Habitat: Moist woods, swamps, streambanks
Elevation: 10–1600 m
Distribution
Alta., B.C., Man., N.W.T., Ont., Que., Sask., Yukon, Alaska, Calif., Idaho, Mont., Oreg., S.Dak., Wash., Wyo.
Discussion
Athyrium filix-femina var. cyclosorum is most similar to the European var. filix-femina; it differs in having broader, nearly equilateral pinnules and medial to supramedial sori. The variety is distributed in northwestern North America with disjunct populations in northwestern Quebec and Ontario.
Selected References
None.
Lower Taxa
None.