View source for Sphagnum platyphyllum

{{Treatment/ID
|accepted_name=Sphagnum platyphyllum
|accepted_authority=(Lindberg) Warnstorf
|publications={{Treatment/Publication
|title=Flora
|place=67: 481. 1884,
}}
|basionyms={{Treatment/ID/Basionym
|name=Sphagnum laricinum var. platyphyllum
|authority=Lindberg
|publication_title=Not. Sällsk. Faun. Fl. Fenn. Förh.
|publication_place=13: 403. 1874
}} {{Treatment/ID/Basionym
|name=Sphagnum contortum var. platyphyllum
|authority=(Lindberg) Åberg
|publication_title=S. grasslii H. A. Crum
|publication_place=
}}
|synonyms={{Treatment/ID/Synonym
|name=Sphagnum subsecundum var. platyphyllum
|authority=(Braithwaite) Cardot
}}
|hierarchy=Sphagnaceae;Sphagnum;Sphagnum sect. Subsecunda;Sphagnum platyphyllum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Sphagnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Sphagnum]]</div><div class="higher-taxon"><small>section</small>[[Sphagnum sect. Subsecunda]]</div><div class="higher-taxon"><small>species</small>[[Sphagnum platyphyllum]]</div></div>
|volume=Volume 27
|mention_page=page 78, 80, 82, 84, 90
|treatment_page=page 83
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small to moderate-sized, unbranched or sparsely branched; green, golden brown to brown, capitulum small with a large and conspicuous terminal bud. <b>Stems</b> green to brown; superficial cortex of 2–3 layers of enlarged, thin-walled cells. <b>Stem</b> leaves broadly ovate, 1.2–2.2 mm; straight; apex rounded; hyaline cells non-septate, convex surface with numerous small pores (less than or equal to 1/6 cell diameter) forming a continuous row along the commissures, concave surface aporose or with a few scattered pores along the commissures and cell ends. <b>Branches</b> short and blunt, sometimes lacking completely and plants simplex. <b>Branch</b> fascicles of 1–3 branches, 1–2 of these spreading, branches usually not numerous. <b>Branch</b> leaves broadly ovate, 1.4–2.5(–3) mm; straight; apex rounded; hyaline cells as in stem leaf. <b>Sexual</b> condition dioicous. <b>Capsule</b> exserted, with few pseudostomata. <b>Spores</b> 23–35 µm; papillose on both surfaces, with indistinct Y-mark sculpture on distal surface; proximal laesura 0.5 spore radius or less.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature late spring to early summer.
|habitat=Typically growing in minerotrophic habitats such as shores of lakes, ponds, streams, flarks of string mires, margins of open fens, especially seasonally flooded sites
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);Ont.;Que.;Yukon;Alaska;Ariz.;Calif.;Colo.;Conn.;Ind.;Maine;Mass.;Mich.;Minn.;Mont.;N.H.;N.J.;N.Y.;Ohio;Oreg.;R.I.;Vt.;Wis.;Wyo.;South America;Eurasia.
|discussion=<p>Sporophytes are uncommon in <i>Sphagnum platyphyllum</i>, which can be quite variable in size and the development of branch fascicles, with some forms even being simplex while other forms may have up to three branches per fascicle. The species can usually be recognized by the large stem leaves that are spreading and easily visible because of the scarcity of hanging branches. It should also be noted that in this species and <i>S. contortum</i> the 2–3-layered stem cortex is not an entirely consistent trait, as plants quite typical in all other respects are occasionally found with the cortex only 1-layered, at least in part.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Sphagnum platyphyllum
|author=
|authority=(Lindberg) Warnstorf
|rank=species
|parent rank=section
|synonyms=Sphagnum subsecundum var. platyphyllum
|basionyms=Sphagnum laricinum var. platyphyllum;Sphagnum contortum var. platyphyllum
|family=Sphagnaceae
|phenology=Capsules mature late spring to early summer.
|habitat=Typically growing in minerotrophic habitats such as shores of lakes, ponds, streams, flarks of string mires, margins of open fens, especially seasonally flooded sites
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);Ont.;Que.;Yukon;Alaska;Ariz.;Calif.;Colo.;Conn.;Ind.;Maine;Mass.;Mich.;Minn.;Mont.;N.H.;N.J.;N.Y.;Ohio;Oreg.;R.I.;Vt.;Wis.;Wyo.;South America;Eurasia.
|reference=None
|publication title=Flora
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_76.xml
|genus=Sphagnum
|section=Sphagnum sect. Subsecunda
|species=Sphagnum platyphyllum
}}<!--

-->[[Category:Treatment]][[Category:Sphagnum sect. Subsecunda]]