View source for Cynodontium polycarpon

{{Treatment/ID
|accepted_name=Cynodontium polycarpon
|accepted_authority=(Hedwig) Schimper
|publications={{Treatment/Publication
|title=Coroll. Bryol. Eur.,
|place=12. 1856,
}}
|basionyms={{Treatment/ID/Basionym
|name=Fissidens polycarpos
|authority=Hedwig
|publication_title=Sp. Musc. Frond.,
|publication_place=159. 1801
}}
|synonyms=
|hierarchy=Dicranaceae;Cynodontium;Cynodontium polycarpon
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dicranaceae]]</div><div class="higher-taxon"><small>genus</small>[[Cynodontium]]</div><div class="higher-taxon"><small>species</small>[[Cynodontium polycarpon]]</div></div>
|volume=Volume 27
|mention_page=page 378, 379, 382
|treatment_page=page 381
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>to 5 cm. <b>Leaves</b> to 5 mm, rather broadly lanceolate, long-acuminate; distal leaf margin broadly recurved, at least on one side, 2-stratose; cells of lamina smooth, scattered mammillose or distinctly mammillose distally, mammillae well developed especially on the adaxial side, distal cells 10 µm wide or more. <b>Perigonium</b> sessile. <b>Seta</b> ca. 0.8 cm, straight wet or dry. <b>Capsule</b> symmetrical, erect, not strumose; annulus of large, deciduous cells.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature summer.
|habitat=Acid rock
|elevation=moderate to high elevations
|distribution=Greenland;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Yukon;Alaska;Colo.;Idaho;Mich.;Minn.;Mont.;Wyo.;n Eurasia;Atlantic Islands (Iceland).
|discussion=<p>Specimens of <i>Cynodontium polycarpon</i> generally found in American herbaria upon re-examination will likely be <i>C. jenneri</i> instead. The latter was once considered to be a variety of <i>C. polycarpon</i>, accounting for many distributional records of <i>C. polycarpon</i> in North America; for example, in the most recent Canadian checklist (R. R. Ireland et al. 1987), of 10 provincial reports only that for the Northwest Territories could be verified by the authors, and the remaining Canadian distribution cited above must be viewed, then, with skepticism. E. Nyholm (1986+, fasc. 1) stated that both <i>C. polycarpon</i> and <i>C. strumiferum</i> have somewhat smaller, less regularly quadrate cells in the distal portion of the leaf and a broadly recurved margin on at least one side of the leaf as opposed to the case of <i>C. jenneri</i>, which has rather regularly quadrate, transparent cells. According to Nyholm, laminal cells of <i>C. polycarpon</i> are 10–12(–14) µm wide, whereas those of <i>C. jenneri</i> are larger: 12–14(–20) µm. H. A. Crum and L. E. Anderson (1981) considered this species doubtfully present in North America. <i>Cynodontium polycarpon</i> <i></i></i>subsp.<i><i> fallax</i> (Limpricht) Kindberg was excluded by Anderson et al. (1990).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cynodontium polycarpon
|author=
|authority=(Hedwig) Schimper
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Fissidens polycarpos
|family=Dicranaceae
|phenology=Capsules mature summer.
|habitat=Acid rock
|illustrator=Barbara Alongi
|elevation=moderate to high elevations
|distribution=Greenland;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Yukon;Alaska;Colo.;Idaho;Mich.;Minn.;Mont.;Wyo.;n Eurasia;Atlantic Islands (Iceland).
|reference=None
|publication title=Coroll. Bryol. Eur.,
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_542.xml
|genus=Cynodontium
|species=Cynodontium polycarpon
}}<!--

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