View source for Ditrichum lineare

{{Treatment/ID
|accepted_name=Ditrichum lineare
|accepted_authority=(Swartz) Lindberg
|publications={{Treatment/Publication
|title=Acta Soc. Sci. Fenn.
|place=10: 108. 1871,
}}
|basionyms={{Treatment/ID/Basionym
|name=Didymodon linearis
|authority=Swartz
|rank=species
|publication_title=Adnot. Bot.,
|publication_place=100. 1829
}}
|synonyms={{Treatment/ID/Synonym
|name=Ditrichum vaginans
|authority=(Sullivant) Hampe
|rank=species
}} {{Treatment/ID/Synonym
|name=Trichostomum vaginans
|authority=Sullivant
|rank=species
}}
|hierarchy=Ditrichaceae;Ditrichum;Ditrichum lineare
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Ditrichaceae]]</div><div class="higher-taxon"><small>genus</small>[[Ditrichum]]</div><div class="higher-taxon"><small>species</small>[[Ditrichum lineare]]</div></div>
|volume=Volume 27
|mention_page=page 450
|treatment_page=page 454
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>in loose to dense tufts, yellowish green. <b>Stems</b> to 1(–1.5) cm, simple or with few branches. <b>Leaves</b> to 2 mm, erect and ± appressed to the stem, oblong-lanceolate, widest at or slightly just proximal to the middle, tapering gradually to a rather blunt apex, lamina 1-stratose except on margins; margins subentire, plane to narrowly recurved, ± erect near the apex, irregularly 2-stratose in the distal half of the leaf; costa percurrent, broad, occupying about 1/3 width of the leaf base, in section with a weakly developed stereid band on abaxial side of guide cells; cells of proximal part of lamina rectangular, thin to moderately thick-walled, becoming slightly shorter and narrower towards the leaf apex. <b>Specialized</b> asexual reproduction by rhizoidal tubers. <b>Sexual</b> condition dioicous; perichaetial leaves with a sheathing base, abruptly narrowed to a short subula about as long as the base or shorter. <b>Seta</b> yellowish, brown to orange-brown with age, to 2.5 cm or sometimes longer, erect. <b>Capsule</b> erect and symmetric or slightly curved, brown to reddish brown, narrowly ellipsoid to cylindric, 1–2 mm, smooth or indistinctly furrowed when dry; operculum obliquely conic-rostrate, blunt, 0.3–0.7 mm; peristome divided by perforations into 2 ± adhering divisions, 200–220 µm, finely papillose. <b>Spores</b> 13–16 µm, appearing smooth or very finely verrucose, brown.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature spring (Apr–May).
|habitat=A pioneer species, bare clay, sandy or gravely soil banks, wooded clearings, trails, roads and other often disturbed habitats
|elevation=low elevations
|distribution=N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Ala.;Ark.;Del.;D.C.;Conn.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;Wis.;Europe;e Asia (Japan).
|discussion=<p>Rhizoidal tubers, consisting of swollen rhizoidal cells and arising laterally from axial rhizoids, are known for <i>Ditrichum lineare</i> only from Asia (T. Matsui et al. 1985; Matsui and Z. Iwatsuki 1990). This species is very similar in appearance to <i>D. pusillum</i> but is distinguished by the rectangular cells of the sheathing leaf base. The leaf margins of North American specimens of <i>D. lineare</i> are entire and plane or rarely only weakly recurved, irregularly 2-stratose but not noticeably thickened, and the lamina cells are elongate rectangular to linear. The leaf margins in <i>D. pusillum</i> are irregularly thickened, serrulate, more strongly recurved, and the lamina cells generally subquadrate to short-rectangular. <i>Ditrichum lineare</i> also has a subula shorter than the sheathing base, which is unusual in the genus. This macroscopic feature is sometimes used to distinguish it from the closely related <i>D. pusillum</i>, which has a subula longer than the sheathing base, typical of many species in the genus (R. R. Ireland 1982).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Ditrichum lineare
|authority=(Swartz) Lindberg
|rank=species
|parent rank=genus
|synonyms=Ditrichum vaginans;Trichostomum vaginans
|basionyms=Didymodon linearis
|family=Ditrichaceae
|phenology=Capsules mature spring (Apr–May).
|habitat=A pioneer species, bare clay, sandy or gravely soil banks, wooded clearings, trails, roads and other often disturbed habitats
|elevation=low elevations
|distribution=N.B.;Nfld. and Labr.;N.S.;Ont.;P.E.I.;Que.;Ala.;Ark.;Del.;D.C.;Conn.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Mo.;N.H.;N.J.;N.Y.;N.C.;Ohio;Pa.;R.I.;Tenn.;Vt.;Va.;Wis.;Europe;e Asia (Japan).
|reference=None
|publication title=Acta Soc. Sci. Fenn.
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V27/V27_655.xml
|genus=Ditrichum
|species=Ditrichum lineare
}}<!--

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