View source for Plagiobryum demissum

{{Treatment/ID
|accepted_name=Plagiobryum demissum
|accepted_authority=(Hooker) Lindberg
|publications={{Treatment/Publication
|title=Öfvers. Kongl. Vetensk.-Akad. Förh.
|place=19: 606. 1863
|year=1863
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms={{Treatment/ID/Synonym
|name=Bryum demissum
|authority=Hooker
}}
|synonyms={{Treatment/ID/Synonym
|name=Meesia demissa
|authority=(Hooker) Hoppe & Hornschuch
}}
|hierarchy=Bryaceae;Plagiobryum;Plagiobryum demissum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Bryaceae]]</div><div class="higher-taxon"><small>genus</small>[[Plagiobryum]]</div><div class="higher-taxon"><small>species</small>[[Plagiobryum demissum]]</div></div>
|volume=Volume 28
|mention_page=page 153
|treatment_page=page 154
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>0.6–1.5 cm, red to reddish brown. <b>Stems</b> 0.3–1.2 cm, innovations short, not julaceous. <b>Leaves</b> of innovations erect to erect-spreading, ovate-lanceolate to ovate, flat to slightly concave, 0.9–1.4 × 0.2–0.5 mm; margins recurved; apex slender, acute; costa ending in apex to distinctly excurrent, in transverse section abaxial stereid band 2–4 cells thick, 2–5 adaxial cells in 1 or 2 layers; leaves on fertile shoots more distinctly lanceolate; proximal laminal cells 3–5:1, walls thick; medial cells narrowly hexagonal or rhomboidal to rectangular, 12–20 µm wide mid leaf, 2.5–4.5:1, walls ± firm distally. <b>Capsule</b> pendulous, 2–5 mm, neck 0.5–1.2 times urn length; exostome yellowish to brown, to 1/2 endostome length, nearly smooth to distinctly striate throughout. <b>Spores</b> released in tetrads, (26–)28–35(–42) µm, strongly papillose, brown.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature late summer–fall.
|habitat=Moist, basic cliffs, humus soil in tundra
|elevation=low to high elevations (0-4200 m)
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr.;N.W.T.;Nunavut;Yukon;Alaska;Colo.;Europe;Asia.
|discussion=<p><i>Plagiobryum demissum</i> has a highly disjunct distribution that is usually associated with mountainous areas. Surprisingly, the species is rarely recorded from most areas of the Canadian Arctic. It is easily recognized when fertile by the combination of reddish gametophytes and pendulous, zygomorphic and distinctly gibbous capsules. When sterile, the plants are inconspicuous and practically indistinguishable from small reddish <i>Bryum</i> species.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Plagiobryum demissum
|author=
|authority=(Hooker) Lindberg
|rank=species
|parent rank=genus
|synonyms=Meesia demissa
|basionyms=Bryum demissum
|family=Bryaceae
|phenology=Capsules mature late summer–fall.
|habitat=Moist, basic cliffs, humus soil in tundra
|elevation=low to high elevations (0-4200 m)
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr.;N.W.T.;Nunavut;Yukon;Alaska;Colo.;Europe;Asia.
|reference=None
|publication title=Öfvers. Kongl. Vetensk.-Akad. Förh.
|publication year=1863
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V28/V28_246.xml
|genus=Plagiobryum
|species=Plagiobryum demissum
}}<!--

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