View source for Mnium hornum

{{Treatment/ID
|accepted_name=Mnium hornum
|accepted_authority=Hedwig
|publications={{Treatment/Publication
|title=Sp. Musc. Frond.,
|place=188. 1801
|year=1801
}}
|basionyms=
|synonyms=
|hierarchy=Mniaceae;Mnium;Mnium hornum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Mniaceae]]</div><div class="higher-taxon"><small>genus</small>[[Mnium]]</div><div class="higher-taxon"><small>species</small>[[Mnium hornum]]</div></div>
|volume=Volume 28
|mention_page=page 224
|treatment_page=page 226
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>1.5–5(–8) cm. <b>Stems</b> red or brown. <b>Leaves</b> green, yellowish, or occasionally dark green, slightly contorted, usually coiled and twisted when dry, sometimes to one side of stem, narrowly elliptic, narrowly ovate-elliptic, or ovate-lanceolate, 3–6 mm, proximal stem leaves narrowly triangular; base short-decurrent; margins pale brown, 2-stratose, toothed to below mid leaf, sometimes to near base, teeth paired, large, sharp; apex acute or acuminate, apiculate or cuspidate, cusp sometimes toothed; costa ending well below apex or occasionally percurrent, distal abaxial surface strongly toothed, adaxial surface occasionally toothed; medial laminal cells ± isodiametric or short-elongate, (15–)17–26(–30) µm, slightly smaller towards margins, not in diagonal rows, sometimes in longitudinal rows, not or weakly collenchymatous, blue postmortal color absent; marginal cells linear, in (2–)3–4 rows. <b>Sexual</b> condition dioicous. <b>Seta</b> single. <b>Capsule</b> pale brown, 3–5 mm; operculum conic-mammillate, rarely short-rostrate; exostome yellowish brown. <b>Spores</b> 30–35 µm.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature summer.
|habitat=Banks along streams, shorelines, cliff faces on moist, sandy soil, humus
|elevation=low to moderate elevations
|distribution=Greenland;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Ala.;Colo.;Conn.;Del.;Fla.;Ga.;Ill.;Iowa;Ky.;Maine;Md.;Mass.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;South America;Europe;Asia;Africa.
|discussion=<p><i>Mnium hornum</i> is one of the most distinctive members of the genus. The long, narrow leaves and strongly toothed abaxial costae with teeth of 1(–3) cells are diagnostic.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Mnium hornum
|authority=Hedwig
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Mniaceae
|phenology=Capsules mature summer.
|habitat=Banks along streams, shorelines, cliff faces on moist, sandy soil, humus
|elevation=low to moderate elevations
|distribution=Greenland;N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Ala.;Colo.;Conn.;Del.;Fla.;Ga.;Ill.;Iowa;Ky.;Maine;Md.;Mass.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;W.Va.;South America;Europe;Asia;Africa.
|reference=None
|publication title=Sp. Musc. Frond.,
|publication year=1801
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_358.xml
|genus=Mnium
|species=Mnium hornum
}}<!--

-->[[Category:Treatment]][[Category:Mnium]]