View source for Drepanocladus polygamus

{{Treatment/ID
|accepted_name=Drepanocladus polygamus
|accepted_authority=(Schimper) Hedenas
|publications={{Treatment/Publication
|title=Bryologist
|place=100: 82. 1997
|year=1997
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Amblystegium polygamum
|authority=Schimper
|rank=species
|publication_title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|publication_place=6: 60, plate 572. 1853
}}
|synonyms={{Treatment/ID/Synonym
|name=Campyliadelphus polygamus
|authority=(Schimper) Kanda
|rank=species
}} {{Treatment/ID/Synonym
|name=Campylium polygamum
|authority=(Schimper) C. E. O. Jensen
|rank=species
}} {{Treatment/ID/Synonym
|name=C. polygamum var. fluitans
|authority=Grout
|rank=variety
}} {{Treatment/ID/Synonym
|name=C. polygamum var. minus
|authority=(Schimper) G. Roth
|rank=variety
}}
|hierarchy=Amblystegiaceae;Drepanocladus;Drepanocladus polygamus
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amblystegiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Drepanocladus]]</div><div class="higher-taxon"><small>species</small>[[Drepanocladus polygamus]]</div></div>
|volume=Volume 28
|mention_page=page 287, 293, 295
|treatment_page=page 294
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>medium-sized to large. <b>Stems</b> irregularly and sparsely branched to ± pinnate. <b>Stem</b> leaves erectopatent to spreading, straight or falcate, ovate, broadly ovate, or rounded-triangular, gradually narrowed to apex, concave, (1.3–)1.7–3.5 × 0.6–1(–1.1) mm; base erectopatent to spreading, insertion slightly curved; margins entire or slightly sinuate; apex acuminate, acumen not or gradually differentiated, furrowed; costa single or 2-fid to 1/2–2/3 leaf length, or double and ending before mid leaf; alar region transversely triangular, reaching from margin 66–100% distance to costa; ratio of medial laminal cell length (µm) to leaf length (mm) 25.3–33.3. <b>Sexual</b> condition autoicous.</span><!--

-->{{Treatment/Body
|habitat=Nutrient-rich wetlands, eutrophic fens, shores, ditches, submerged in pools and lakes, swampy forests
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Fla.;Idaho;Iowa;Maine;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;Ohio;Wash.;Wis.;Wyo.;West Indies;Central America;South America;Eurasia (including Papua New Guinea);Africa;Pacific Islands (New Zealand);Australia;Antarctica.
|discussion=<p>Some specimens of <i>Drepanocladus polygamus</i> are very similar to <i>D. aduncus</i>. However, <i>D. polygamus</i> is autoicous, whereas <i>D. aduncus</i> is dioicous, and in most cases at least parts of the shoots of <i>D. polygamus</i> are reminiscent of species of <i>Campylium</i> such as <i>C. stellatum</i>, with the leaves more or less spreading and acumen furrowed. In <i>D. aduncus</i>, the leaf acumen is more or less flat in straight-leafed specimens, which are the ones likely to be confused with <i>D. polygamus</i>, and the leaves are not spreading in a <i>Campylium</i>-like fashion.</p><!--
--><p>The identity of <i>Campylium</i> polygamum var. longinerve (Renauld & Cardot) Grout (<i>Hypnum</i> polygamum var. longinerve Renauld & Cardot) is unclear, because no type material was available for study.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Drepanocladus polygamus
|authority=(Schimper) Hedenas
|rank=species
|parent rank=genus
|synonyms=Campyliadelphus polygamus;Campylium polygamum;C. polygamum var. fluitans;C. polygamum var. minus
|basionyms=Amblystegium polygamum
|family=Amblystegiaceae
|habitat=Nutrient-rich wetlands, eutrophic fens, shores, ditches, submerged in pools and lakes, swampy forests
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Fla.;Idaho;Iowa;Maine;Mass.;Mich.;Minn.;Mo.;N.H.;N.J.;N.Y.;Ohio;Wash.;Wis.;Wyo.;West Indies;Central America;South America;Eurasia (including Papua New Guinea);Africa;Pacific Islands (New Zealand);Australia;Antarctica.
|reference=None
|publication title=Bryologist
|publication year=1997
|special status=Illustrated
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V28/V28_458.xml
|genus=Drepanocladus
|species=Drepanocladus polygamus
}}<!--

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