Difference between revisions of "Dryopteris clintoniana"
Proc. Staten Island Assoc. Arts 1: 64. 1906.
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|elevation=50–600 m | |elevation=50–600 m | ||
|distribution=N.B.;Ont.;Que.;Conn.;Ind.;Maine;Mass.;Mich.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Vt. | |distribution=N.B.;Ont.;Que.;Conn.;Ind.;Maine;Mass.;Mich.;N.H.;N.J.;N.Y.;Ohio;Pa.;R.I.;Vt. | ||
| − | |discussion=<p>Dryopteris clintoniana is a North American endemic and an allohexaploid derived from D. cristata and D. goldiana. Dryopteris clintoniana hybridizes with six species. Hybrids can be identified by the fairly narrow blades and elongate-deltate proximal pinnae.</p> | + | |discussion=<p><i>Dryopteris clintoniana</i> is a North American endemic and an allohexaploid derived from <i>D. cristata</i> and <i>D. goldiana</i>. <i>Dryopteris clintoniana</i> hybridizes with six species. Hybrids can be identified by the fairly narrow blades and elongate-deltate proximal pinnae.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1906 | |publication year=1906 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_547.xml |
|genus=Dryopteris | |genus=Dryopteris | ||
|species=Dryopteris clintoniana | |species=Dryopteris clintoniana | ||
Revision as of 16:49, 18 September 2019
Leaves dimorphic, 45–100 × 12–20 cm; fertile leaves dying back in winter; sterile leaves 1–several, smaller, green through winter. Petiole 1/4–1/3 length of leaf, scaly at least at base; scales scattered, tan, sometimes with dark brown center. Blade green, lanceolate, with nearly parallel sides, pinnate-pinnatifid, herbaceous, not glandular. Pinnae of fertile leaves twisted out of plane of blade but not fully perpendicular to it, narrowly elongate-deltate; basal pinnae narrowly elongate-deltate, much reduced; basal pinnules longer than or equal to adjacent pinnules, basal basiscopic pinnule and basal acroscopic pinnule equal; pinnule margins serrate or biserrate, with spiny teeth. Sori midway between midvein and margin of segments. Indusia lacking glands. 2n = 246.
Habitat: Swampy woods
Elevation: 50–600 m
Distribution
N.B., Ont., Que., Conn., Ind., Maine, Mass., Mich., N.H., N.J., N.Y., Ohio, Pa., R.I., Vt.
Discussion
Dryopteris clintoniana is a North American endemic and an allohexaploid derived from D. cristata and D. goldiana. Dryopteris clintoniana hybridizes with six species. Hybrids can be identified by the fairly narrow blades and elongate-deltate proximal pinnae.
Selected References
None.