View source for Sciuro-hypnum curtum

{{Treatment/ID
|accepted_name=Sciuro-hypnum curtum
|accepted_authority=(Lindberg) Ignatov
|publications={{Treatment/Publication
|title=Arctoa
|place=16: 71. 2008
|year=2008
}}
|basionyms={{Treatment/ID/Basionym
|name=Hypnum curtum
|authority=Lindberg
|rank=species
|publication_title=Musc. Scand. ,
|publication_place=35. 1879
}}
|synonyms={{Treatment/ID/Synonym
|name=Brachythecium curtum
|authority=(Lindberg) Limpricht
|rank=species
}}
|hierarchy=Brachytheciaceae;Sciuro-hypnum;Sciuro-hypnum curtum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brachytheciaceae]]</div><div class="higher-taxon"><small>genus</small>[[Sciuro-hypnum]]</div><div class="higher-taxon"><small>species</small>[[Sciuro-hypnum curtum]]</div></div>
|volume=Volume 28
|mention_page=page 419, 422, 454, 456, 461, 463
|treatment_page=page 462
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>medium-sized to large, in loose tufts, green, sometimes yellowish or brownish. <b>Stems</b> to 10 cm, ascending or more commonly arching, flexuose, terete- to subcomplanate-foliate, irregularly pinnate, branches to 10 mm, often curved, terete- to complanate-foliate. <b>Stem</b> leaves erectopatent to patent, loosely arranged, ovate or ovate-triangular, slightly concave, not plicate, 1.4–2.4 × 0.9–1.5 mm; base with decurrency broad proximally, becoming very narrow; margins plane, serrulate; apex gradually acuminate to narrowly acute; costa to 30–75% leaf length, weak, terminal abaxial spine small or absent; alar cells larger than basal juxtacostal cells, 15–40 × 12–18 µm, walls relatively thin, region abruptly or occasionally gradually delimited, pellucid; laminal cells linear, 60–150 × 7–12 µm; basal cells broader, shorter than laminal cells, region in 3 rows. <b>Branch</b> leaves ovate; base asymmetric; margins recurved basally on one side, more strongly serrulate to coarsely serrate distally; apex acute; costa in some leaves with terminal spine prominent, with several abaxial teeth. <b>Sexual</b> condition autoicous. <b>Seta</b> reddish, 1.7–3.2 cm, rough. <b>Capsule</b> horizontal to pendent, reddish, oblong, curved, especially when young (sometimes forming 180–270° arch), 2 mm. <b>Spores</b> 13–17 µm.</span><!--

-->{{Treatment/Body
|habitat=Forest floors, coniferous forests, soil rich in humus, logs, mineral soil, tree bases, under tall herb vegetation
|elevation=low to moderate elevations (0-900 m)
|distribution=Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Colo.;Conn.;Maine;Md.;Mich.;Mont.;N.H.;N.J.;N.Y.;Pa.;Vt.;W.Va.;n Eurasia;Atlantic Islands.
|discussion=<p>In the West, <i>Sciuro-hypnum curtum</i> is known only from two collections: North American Mosses 259, Montana, Columbia Falls, R. S. Williams in 1896 (NY), and Manitoba, south of Harashville, Mueller-Dombois 068–13 (MO). Most collections in American herbaria are deposited under the name <i>Brachythecium</i> starkei. <i>Sciuro-hypnum curtum</i> becomes very slender and loosely foliate in deep shade. It can be recognized by not plicate, ovate to ovate-triangular leaves; relatively short costa, often ending at 0.4–0.6 leaf length; pellucid group of cells adjacent to decurrency or sometimes extending to most of leaf base; frequent sporophytes; coarse serration of leaf margins; cells often longer than 100 µm in stem leaves; and strongly curved capsules. <i>Brachythecium rutabulum</i> is similar, and when optimally developed forms rather dense tufts that never occur in <i>S. curtum</i>. However, <i>B. rutabulum</i> from deeply shaded habitats may have loose tufts and nearly plane leaves, and strongly resemble <i>S. curtum</i>. The leaf of <i>S. curtum</i> from its broadest point is tapered at 35–45°, while for <i>B. rutabulum</i> at 30–35°, resulting in more acuminate leaves of the former. The patterns of decurrencies are also distinct: <i>S. curtum</i> has long and narrowly decurrent leaves, while in <i>B. rutabulum</i> decurrencies are triangular, broad and rather short.</p>
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-->{{#Taxon:
name=Sciuro-hypnum curtum
|authority=(Lindberg) Ignatov
|rank=species
|parent rank=genus
|synonyms=Brachythecium curtum
|basionyms=Hypnum curtum
|family=Brachytheciaceae
|habitat=Forest floors, coniferous forests, soil rich in humus, logs, mineral soil, tree bases, under tall herb vegetation
|elevation=low to moderate elevations (0-900 m)
|distribution=Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Colo.;Conn.;Maine;Md.;Mich.;Mont.;N.H.;N.J.;N.Y.;Pa.;Vt.;W.Va.;n Eurasia;Atlantic Islands.
|reference=None
|publication title=Arctoa
|publication year=2008
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V28/V28_719.xml
|genus=Sciuro-hypnum
|species=Sciuro-hypnum curtum
}}<!--

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