View source for Rhizomnium magnifolium

{{Treatment/ID
|accepted_name=Rhizomnium magnifolium
|accepted_authority=(Horikawa) T. J. Koponen
|publications={{Treatment/Publication
|title=Ann. Bot. Fenn.
|place=10: 14. 1973
|year=1973
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Mnium magnifolium
|authority=Horikawa
|publication_title=J. Jap. Bot.
|publication_place=11: 503, figs. 4, 5. 1935
}}
|synonyms={{Treatment/ID/Synonym
|name=M. punctatum var. elatum
|authority=Schimper
}} {{Treatment/ID/Synonym
|name=Rhizomnium perssonii
|authority=unknown
}}
|hierarchy=Mniaceae;Rhizomnium;Rhizomnium magnifolium
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Mniaceae]]</div><div class="higher-taxon"><small>genus</small>[[Rhizomnium]]</div><div class="higher-taxon"><small>species</small>[[Rhizomnium magnifolium]]</div></div>
|volume=Volume 28
|mention_page=page 237, 238, 239, 242
|treatment_page=page 240
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>(2–)3–6(–10) cm. <b>Stems</b> reddish brown to black when old; micronemata present, often absent on young stems. <b>Leaves</b> green to dark green, contorted when dry, obovate or broadly elliptic, 4–9(–12) mm; margins green or sometimes reddish, 1- or 2-stratose; apex rounded or retuse, sometimes emarginate, rarely weakly apiculate; costa ending well before apex, subpercurrent, or percurrent, sometimes 2-fid distally; medial laminal cells elongate, (55–)80–100(–130) µm, weakly collenchymatous, walls lightly pitted; marginal cells linear, in 2–3(–4) rows. <b>Sexual</b> condition dioicous. <b>Seta</b> 2–4 cm. <b>Capsule</b> oblong or cylindric, 3–4 mm; operculum conic-rostrate; exostome greenish yellow, lamellae 18+. <b>Spores</b> 25–35 µm.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature summer.
|habitat=Forested stream banks, seeps on moist soil, humus, rock
|elevation=low to moderate elevations
|distribution=Greenland;Alta.;B.C.;N.B.;Nfld. and Labr.;N.S.;Ont.;Que.;Yukon;Alaska;Calif.;Colo.;Idaho;Maine;Mich.;Minn.;Mont.;N.Y.;N.C.;Oreg.;Pa.;Wash.;Wis.;Wyo.;Europe;Asia.
|discussion=<p><i>Rhizomnium magnifolium</i>, although usually large, can sometimes be small and has been confused with <i>R. pseudopunctatum</i>. Fertile plants of <i>R. pseudopunctatum</i> are synoicous, but sterile collections are common and often ambiguous. <i>Rhizomnium magnifolium</i> has larger and much less pitted laminal cells than <i>R. pseudopunctatum</i>, and its margins are composed mainly of linear cells and are usually 2-stratose; those of <i>R. pseudopunctatum</i> are composed of shorter and usually rectangular or rhomboidal cells and are always 1-stratose. The length of the costa is frequently used to separate these two species, but this character is unreliable with smaller specimens of <i>R. magnifolium</i>. The costa of <i>R. magnifolium</i> is often subpercurrent or percurrent, whereas the costa of <i>R. pseudopunctatum</i> is usually much shorter, and only occasionally subpercurrent and rarely percurrent. For comparison with the similar 2. <i>R. appalachianum</i>, see the discussion there.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Rhizomnium magnifolium
|author=
|authority=(Horikawa) T. J. Koponen
|rank=species
|parent rank=genus
|synonyms=M. punctatum var. elatum;Rhizomnium perssonii
|basionyms=Mnium magnifolium
|family=Mniaceae
|phenology=Capsules mature summer.
|habitat=Forested stream banks, seeps on moist soil, humus, rock
|elevation=low to moderate elevations
|distribution=Greenland;Alta.;B.C.;N.B.;Nfld. and Labr.;N.S.;Ont.;Que.;Yukon;Alaska;Calif.;Colo.;Idaho;Maine;Mich.;Minn.;Mont.;N.Y.;N.C.;Oreg.;Pa.;Wash.;Wis.;Wyo.;Europe;Asia.
|reference=None
|publication title=Ann. Bot. Fenn.
|publication year=1973
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V28/V28_384.xml
|genus=Rhizomnium
|species=Rhizomnium magnifolium
}}<!--

-->[[Category:Treatment]][[Category:Rhizomnium]]