View source for Sphagnum jensenii

{{Treatment/ID
|accepted_name=Sphagnum jensenii
|accepted_authority=H. Lindberg
|publications={{Treatment/Publication
|title=Acta Soc. Fauna Fl. Fenn.
|place=18(3): 13. 1899,
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Sphagnum annulatum var. porosum
|authority=(Warnstorf) W. S. G. Maas
}}
|hierarchy=Sphagnaceae;Sphagnum;Sphagnum sect. Cuspidata;Sphagnum jensenii
|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 jensenii]]</div></div>
|volume=Volume 27
|mention_page=page 62, 65, 83
|treatment_page=page 69
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>moderate-sized to robust, weak-stemmed; pale brown to chestnut brown; capitulum flat-topped and generally 5-radiate, branches straight to somewhat curved, terminal bud often visible. <b>Stems</b> pale green to brown, superficial cortex of 2 layers of thin-walled and well differentiated cells. <b>Stem</b> leaves triangular, ovate-triangular to triangular-lingulate, 1–1.3 mm; appressed to spreading; apex obtuse, hyaline cells usually fibrillose near apex. <b>Branches</b> straight to somewhat curved, leaves moderately elongate at distal end. <b>Branch</b> fascicles with 2 spreading and 1–2 pendent branches. <b>Branch</b> stems green, cortex enlarged with conspicuous retort cells. <b>Branch</b> leaves ovate-lanceolate; usually more than 2 mm; straight; weakly undulate and slightly recurved when dry, margins entire; hyaline cells on convex surface with numerous small free pores in proximal 2/3 of leaf and in apical region with numerous pseudopores along commissures, on concave surface with numerous round free pores; cells relatively long and narrow in basal region, much longer than in mid region; chlorophyllous cells triangular in transverse section and well-enclosed on concave surface. <b>Sexual</b> condition dioicous. <b>Spores</b> 29–33 µm; both surfaces very smooth; proximal laesura long, more than 0.6 spore radius.</span><!--

-->{{Treatment/Body
|habitat=Predominantly in wet carpets in poor to medium fen habitats, mostly in mire-wide vegetation
|elevation=low to moderate elevations
|distribution=Alta.;B.C.;Nfld. and Labr. (Nfld.);N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Eurasia.
|discussion=<p>Sporophytes of <i>Sphagnum jensenii</i> are uncommon. For more information, see discussion under 23. <i>S. annulatum</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Sphagnum jensenii
|author=
|authority=H. Lindberg
|rank=species
|parent rank=section
|synonyms=Sphagnum annulatum var. porosum
|basionyms=
|family=Sphagnaceae
|habitat=Predominantly in wet carpets in poor to medium fen habitats, mostly in mire-wide vegetation
|elevation=low to moderate elevations
|distribution=Alta.;B.C.;Nfld. and Labr. (Nfld.);N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;Eurasia.
|reference=None
|publication title=Acta Soc. Fauna Fl. Fenn.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_44.xml
|genus=Sphagnum
|section=Sphagnum sect. Cuspidata
|species=Sphagnum jensenii
}}<!--

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