Difference between revisions of "Salix ×jesupii"
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Salix </b>×jesupii Fernald: S. alba × S. lucida; S. ×ehrhartiana of authors, not G. <b>Meyer</b>. <b>The</b> origin of this hybrid, between a European and a native species, is unknown. <b>It</b> is characterized by: shrubs or trees, 7–10 m; branchlets red-brown; petioles convex to shallowly grooved adaxially, 3–11 mm, with pairs or clusters of spherical or stalked glands distally; largest medial leaf blade amphistomatous or hemiamphistomatous, abaxial surface glaucous, sparsely long-silky to glabrescent, hairs white and ferruginous; floral bract apex acute to rounded, toothed or entire; pistillate flowering branchlet 8–16 mm, bract deciduous after flowering; stamens 3–5; stipes 0.3–0.6 mm; ovary pyriform, glabrous; ovules 12–14 per ovary; styles 0.3–0.8 mm; capsules 4–5 mm.</span><!-- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Salix </b>×jesupii Fernald: <i>S. alba</i> × <i>S. lucida</i>; S. ×ehrhartiana of authors, not G. <b>Meyer</b>. <b>The</b> origin of this hybrid, between a European and a native species, is unknown. <b>It</b> is characterized by: shrubs or trees, 7–10 m; branchlets red-brown; petioles convex to shallowly grooved adaxially, 3–11 mm, with pairs or clusters of spherical or stalked glands distally; largest medial leaf blade amphistomatous or hemiamphistomatous, abaxial surface glaucous, sparsely long-silky to glabrescent, hairs white and ferruginous; floral bract apex acute to rounded, toothed or entire; pistillate flowering branchlet 8–16 mm, bract deciduous after flowering; stamens 3–5; stipes 0.3–0.6 mm; ovary pyriform, glabrous; ovules 12–14 per ovary; styles 0.3–0.8 mm; capsules 4–5 mm.</span><!-- |
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|elevation=10–300m | |elevation=10–300m | ||
|distribution=Ont.;Que.;P.E.I.;Sask.;Ill.;Ky.;Mass.;N.H.;N.Y.;Ohio;Pa.;Vt.;Va.;Wash.;W.Va.;Wis. It is possibly introduced in Wash.. | |distribution=Ont.;Que.;P.E.I.;Sask.;Ill.;Ky.;Mass.;N.H.;N.Y.;Ohio;Pa.;Vt.;Va.;Wash.;W.Va.;Wis. It is possibly introduced in Wash.. | ||
| − | |discussion=<p>Salix ×jesupii was named by M. S. Bebb (1895) as a formula hybrid, S. alba × S. lucida, and Fernald based his binomial on Bebb’s exsiccatae. In North America, it was mistaken for the European S. ×ehrhartiana G. Meyer (S. alba Linnaeus × S. pentandra Linnaeus) (G. W. Argus 1986). Study of nectary morphology confirmed that the North American plants were not the same as the European hybrid. In herbaria, plants of S. ×jesupii often are misidentified as S. alba, S. euxina, S. ×fragilis, or S. lucida.</p> | + | |discussion=<p><i>Salix ×jesupii</i> was named by M. S. Bebb (1895) as a formula hybrid, <i>S. alba</i> × <i>S. lucida</i>, and Fernald based his binomial on Bebb’s exsiccatae. In North America, it was mistaken for the European S. ×ehrhartiana G. Meyer (<i>S. alba</i> Linnaeus × <i>S. pentandra</i> Linnaeus) (G. W. Argus 1986). Study of nectary morphology confirmed that the North American plants were not the same as the European hybrid. In herbaria, plants of <i>S. ×jesupii</i> often are misidentified as <i>S. alba</i>, <i>S. euxina</i>, <i>S. ×fragilis</i>, or <i>S. lucida</i>.</p> |
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| − | |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/V7/V7_1319.xml |
|genus=Salix | |genus=Salix | ||
|subgenus=Salix subg. Salix | |subgenus=Salix subg. Salix | ||
Revision as of 18:55, 18 September 2019
Salix ×jesupii Fernald: S. alba × S. lucida; S. ×ehrhartiana of authors, not G. Meyer. The origin of this hybrid, between a European and a native species, is unknown. It is characterized by: shrubs or trees, 7–10 m; branchlets red-brown; petioles convex to shallowly grooved adaxially, 3–11 mm, with pairs or clusters of spherical or stalked glands distally; largest medial leaf blade amphistomatous or hemiamphistomatous, abaxial surface glaucous, sparsely long-silky to glabrescent, hairs white and ferruginous; floral bract apex acute to rounded, toothed or entire; pistillate flowering branchlet 8–16 mm, bract deciduous after flowering; stamens 3–5; stipes 0.3–0.6 mm; ovary pyriform, glabrous; ovules 12–14 per ovary; styles 0.3–0.8 mm; capsules 4–5 mm.
Phenology: Flowering late April–mid May.
Habitat: Edges of streams and lakes, in wet deciduous woods, sand dunes, and wet railroad rights-of-way.
Elevation: 10–300m
Distribution
Ont., Que., P.E.I., Sask., Ill., Ky., Mass., N.H., N.Y., Ohio, Pa., Vt., Va., Wash., W.Va., Wis. It is possibly introduced in Wash..
Discussion
Salix ×jesupii was named by M. S. Bebb (1895) as a formula hybrid, S. alba × S. lucida, and Fernald based his binomial on Bebb’s exsiccatae. In North America, it was mistaken for the European S. ×ehrhartiana G. Meyer (S. alba Linnaeus × S. pentandra Linnaeus) (G. W. Argus 1986). Study of nectary morphology confirmed that the North American plants were not the same as the European hybrid. In herbaria, plants of S. ×jesupii often are misidentified as S. alba, S. euxina, S. ×fragilis, or S. lucida.
Selected References
None.