View source for Drosera anglica

{{Treatment/ID
|accepted_name=Drosera anglica
|accepted_authority=Hudson
|publications={{Treatment/Publication
|title=Fl. Angl. ed.
|place=2, 1: 135. 1778
|year=1778
}}
|common_names=Great or English sundew;droséra d’Angleterre
|basionyms=
|synonyms=
|hierarchy=Droseraceae;Drosera;Drosera anglica
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Droseraceae]]</div><div class="higher-taxon"><small>genus</small>[[Drosera]]</div><div class="higher-taxon"><small>species</small>[[Drosera anglica]]</div></div>
|volume=Volume 6
|mention_page=page 421, 424, 425
|treatment_page=page 422
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>forming winter hibernaculae, rosettes 2–6 cm diam.; stem base not bulbous-cormose. <b>Leaves</b> erect; stipules entirely adnate to petioles, 5 mm, margins fimbriate along distal 1/2; petiole differentiated from blade, 3–7 cm, glabrous or sparsely glandular-hairy; blade obovate to elongate-spatulate, 1.5–3.5(–5) cm × 3–7 mm. <b>Inflorescences</b> 1–12-flowered; scapes 3–25 cm, glabrous. <b>Flowers</b> 8–10 mm diam.; sepals connate basally, oblong, 5–6 × 4–5 mm, minutely glandular-denticulate; petals usually white, rarely pinkish, spatulate, 5–6 × 2–3.5 mm. <b>Capsules</b> 4–6 mm, minutely tuberculose. <b>Seeds</b> black, sigmoid-fusiform, 1–1.5 mm, length 1–2 times width, longitudinally striate-areolate. <b>2n</b> = 40.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jun–Aug.
|habitat=Marly shores, fens, drainage tracks in peat bogs
|elevation=10–2600 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Idaho;Maine;Mich.;Minn.;Mont.;Oreg.;Wash.;Wis.;Wyo.;Eurasia;Pacific Islands (Hawaii).
|discussion=<p><i>Drosera anglica</i> is a boreal species that occurs on calcareous substrates. It often grows with <i>D. rotundifolia</i> in peat bogs, and with <i>D. linearis</i> and <i>D. rotundifolia</i> in marl fens, especially in the Great Lakes region. C. E. Wood Jr. (1955) presented a strong case for the hybrid origin of <i>D. anglica</i>, suggesting that it arose as a fertile amphiploid hybrid between <i>D. rotundifolia</i> and <i>D. linearis</i>. It is the only tetraploid North American species of <i>Drosera</i> with 2n = 40. The sterile hybrid <i>D. rotundifolia</i> × <i>D. linearis</i> may be found whenever these species grow together. To avoid confusion, and because a formal name for the sterile hybrid has not been published, it should not be called <i>Drosera</i> ×anglica Hudson, as is commonly done. According to D. E. Schnell (2002), the fertile species may be distinguished from the sterile hybrid by its wider flowers (8–10 mm versus 6–7 mm) and wider scapes (1.5–2 mm versus 1–1.2 mm).</p><!--
--><p>The hybrid between <i>Drosera rotundifolia</i> and <i>D. anglica</i> is a sterile triploid, and has been formally named <i>Drosera</i> ×obovata Mertens & W. D. J. Koch.</p><!--
--><p>Because <i>Drosera</i> longifolia Linnaeus cannot be convincingly typified and has been so often used for plants of <i>D. anglica</i> and <i>D. intermedia</i> in the literature (F. E. Wynne 1944), the name D. longifolia has been rejected as ambiguous.</p><!--
--><p><i>Drosera anglica</i> is found in the Aalakai Swamp at 1500–2000 meters on the Hawaiian island of Kauai (perhaps brought by migrating birds from Alaska); it is otherwise found in cold northern climates. D. E. Schnell (2002), who has grown the Kauai plants from seed, postulated that the high elevation provides a cooler temperature, and noted that plants from there do not form winter hibernaculae but only smaller winter rosettes.</p>
|tables=
|references={{Treatment/Reference
|id=wood1955a
|text=Wood, C. E. Jr. 1955. Evidence for the hybrid origin of Drosera anglica. Rhodora 57: 105–130.
}}
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-->{{#Taxon:
name=Drosera anglica
|authority=Hudson
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Droseraceae
|phenology=Flowering Jun–Aug.
|habitat=Marly shores, fens, drainage tracks in peat bogs
|elevation=10–2600 m
|distribution=Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Idaho;Maine;Mich.;Minn.;Mont.;Oreg.;Wash.;Wis.;Wyo.;Eurasia;Pacific Islands (Hawaii).
|reference=wood1955a
|publication title=Fl. Angl. ed.
|publication year=1778
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V6/V6_796.xml
|genus=Drosera
|species=Drosera anglica
}}<!--

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