View source for Sphagnum angustifolium

{{Treatment/ID
|accepted_name=Sphagnum angustifolium
|accepted_authority=(Warnstorf) C. E. O. Jensen
|publications={{Treatment/Publication
|title=Bih. Svenska Vetensk.-Akad. Handl.
|place=16(9): 46. 1891,
}}
|basionyms={{Treatment/ID/Basionym
|name=Sphagnum recurvum var. angustifolium
|authority=Warnstorf
|rank=variety
|publication_title=Nyt. Mag. Naturvidensk.
|publication_place=31: 213. 1888
}}
|synonyms={{Treatment/ID/Synonym
|name=Sphagnum amblyphyllum var. parvifolium
|authority=(Sendtner) Warnstorf
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sphagnum flexuosum var. tenue
|authority=(H. Klinggraff) Pilous
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sphagnum parvifolium
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Sphagnum recurvum var. parvifolium
|authority=Warnstorf
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sphagnum recurvum var. tenue
|authority=H. Klinggraff
|rank=variety
}}
|hierarchy=Sphagnaceae;Sphagnum;Sphagnum sect. Cuspidata;Sphagnum angustifolium
|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. Cuspidata]]</div><div class="higher-taxon"><small>species</small>[[Sphagnum angustifolium]]</div></div>
|volume=Volume 27
|mention_page=page 19, 63, 65, 66, 68, 84, 89, 92, 94, 96
|treatment_page=page 64
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small and often slender and soft, lax to compact, moderately stiff-stemmed; green to pale yellow to golden brown to brown; capitulum strongly convex in drier grown forms to strongly 5-radiate and flat in wetter growing forms. <b>Stems</b> pale green to pale brown, often with pinkish red patches, cortex undifferentiated. <b>Stem</b> leaves equilateral to isosceles-triangular, small, less than 0.8 mm, mostly appressed to stem, apex acute to obtuse, hyaline cells efibrillose and nonseptate. <b>Branches</b> straight to slightly curved, usually 5-ranked; leaves not much longer at distal end than proximal end. <b>Branch</b> fascicles with 2 spreading and 2–3 pendent branches. <b>Branch</b> stems with cortex enlarged with conspicuous retort cells, often pinkish red at proximal end. <b>Branch</b> leaves narrowly ovate-lanceolate, 0.8–1 mm, straight, moderately undulate and recurved in larger and/or wetter grown forms, not undulate and slightly recurved in compact forms from drier sites; margins entire; hyaline cells on convex surface with 1(2–3) pore per cell at apical end of cell, on concave surface with round wall thinnings in cell ends and angles; chlorophyllous cells triangular in transverse section and just enclosed on concave surface. <b>Sexual</b> condition dioicous. <b>Spores</b> 21–25 µm; coarsely papillose on proximal and distal surfaces; proximal laesura more than 0.5 spore radius.</span><!--

-->{{Treatment/Body
|habitat=Wide range of habitats, from ombrotrophic to rich fens, open mires, sedge fens and muskeg, as carpets, floating mats, low hummocks and hummock sides
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Idaho;Ill.;Ind.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Eurasia.
|discussion=<p>The sporophytes of <i>Sphagnum angustifolium</i> are somewhat common. This species is distinguished from similar ones in sect. Cuspidata by the small, triangular, obtuse and appressed stem leaves. It also often has a pink stem, as opposed to the reddish branch bases seen in some other species of the section. <i>Sphagnum balticum</i> has stem leaves that are more lingulate-triangular as well as spreading from the stem. <i>Sphagnum angustifolium</i> belongs to a subgroup within sect. Cuspidata usually referred to as <i>S. recurvum</i>, in the broad sense, a group of mostly carpet-forming species that differ from other members of the section in having pairs of pendent branch buds visible between the capitulum rays. The group also includes <i>S. brevifolium</i>, <i>S. fallax</i>, <i>S. flexuosum</i>, <i>S. pacificum</i>, <i>S. recurvum</i>, <i>S. rubroflexuosum</i>, and <i>S. splendens</i>.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Sphagnum angustifolium
|authority=(Warnstorf) C. E. O. Jensen
|rank=species
|parent rank=section
|synonyms=Sphagnum amblyphyllum var. parvifolium;Sphagnum flexuosum var. tenue;Sphagnum parvifolium;Sphagnum recurvum var. parvifolium;Sphagnum recurvum var. tenue
|basionyms=Sphagnum recurvum var. angustifolium
|family=Sphagnaceae
|habitat=Wide range of habitats, from ombrotrophic to rich fens, open mires, sedge fens and muskeg, as carpets, floating mats, low hummocks and hummock sides
|elevation=low to high elevations
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Ont.;Que.;Sask.;Yukon;Alaska;Calif.;Colo.;Idaho;Ill.;Ind.;Maine;Md.;Mass.;Mich.;Minn.;Mo.;Mont.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Eurasia.
|reference=None
|publication title=Bih. Svenska Vetensk.-Akad. Handl.
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V27/V27_34.xml
|genus=Sphagnum
|section=Sphagnum sect. Cuspidata
|species=Sphagnum angustifolium
}}<!--

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