View source for Hypnum recurvatum

{{Treatment/ID
|accepted_name=Hypnum recurvatum
|accepted_authority=(Lindberg & Arnell) Kindberg
|publications={{Treatment/Publication
|title=Enum. Bryin. Exot., suppl.
|place=2: 100. 1893
|year=1893
}}
|basionyms={{Treatment/ID/Basionym
|name=Stereodon recurvatus
|authority=Lindberg & Arnell
|publication_title=Kongl. Svenska Vetensk. Akad. Handl., n. s.
|publication_place=23(10): 149. 1890
}} {{Treatment/ID/Basionym
|name=Hypnum bridelianum
|authority=H. A. Crum
|publication_title=Steere &amp; L. E. Anderson
|publication_place=
}}
|synonyms={{Treatment/ID/Synonym
|name=Drepanium recurvatum
|authority=(Lindberg & Arnell) Roth
}}
|hierarchy=Hypnaceae;Hypnum;Hypnum recurvatum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Hypnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Hypnum]]</div><div class="higher-taxon"><small>species</small>[[Hypnum recurvatum]]</div></div>
|volume=Volume 28
|mention_page=page 315, 534, 545, 547
|treatment_page=page 546
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>small, yellowish to light green, blackish brown proximally. <b>Stems</b> 2–5 cm, light yellow to yellowish brown, creeping, irregularly to regularly 1–2(–3)-pinnate, densely to loosely (sometimes fastigiately) branched, branches 0.2–0.5(–0.8) cm; hyalodermis absent, central strand weak; pseudoparaphyllia narrowly lanceolate to filamentous, rarely branched. <b>Stem</b> leaves strongly falcate-secund to circinate, ovate to oblong-lanceolate, gradually narrowed to apex, 0.7–1.3 × 0.3–0.4 mm; base somewhat decurrent, subcordate, not auriculate; margins recurved basally to 2/3 leaf length or longer, occasionally plane, almost entire to finely serrulate; acumen fine; costa indistinct, weak, or ecostate; alar cells quadrate, region not well defined, 4–10 cells in marginal row; basal laminal cells broader than medial cells, yellowish, walls ± porose; medial cells 30–50+ × 3 µm. <b>Branch</b> leaves similar, 0.5–1 mm. <b>Sexual</b> condition autoicous. <b>Seta</b> reddish when mature, 0.7–1.5(–1.8) cm. <b>Capsule</b> suberect to horizontal, yellowish to reddish when mature, oblong to subcylindric, 1–2 × 0.4–0.8 mm; annulus 2-seriate; operculum conic; endostome cilia (1–)2–3.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature late summer–fall.
|habitat=Obligate calcicole, on relatively plane surfaces of cliffs and boulders, particularly where humidity is persistent
|elevation=low to high elevations (0-2000 m)
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Europe;Asia.
|discussion=<p><i>Hypnum recurvatum</i> is widespread in the Northern Hemisphere, more frequent in western than eastern portions of the continents. The plants are firmly affixed to the substrate by rhizoids and produce sporophytes in summer; the branches are unequal in length and sometimes flagelliform; the pseudoparaphyllia are frequent, possibly referable to paraphyllia, usually with a 1-seriate apex 3–6 cells in length; the stem leaves are plicate; and the alar cell walls are thinner than those of the medial cells. This species has been confused with <i>H. revolutum </i>var.<i> ravaudii</i>, but the pseudoparaphyllia of that variety are wide and foliose, while those in <i>H. recurvatum</i> are lanceolate to filamentous. The leaves of <i>H. recurvatum</i> are strongly falcate to circinate, while those of <i>H. revolutum </i>var.<i> ravaudii</i> are often barely falcate and sometimes straight; also alar cell differentiation in <i>H. recurvatum</i> is less pronounced than in the other. <i>Hypnum</i> fastigiatum Bridel is an illegitimate later homonym that pertains here.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Hypnum recurvatum
|author=
|authority=(Lindberg & Arnell) Kindberg
|rank=species
|parent rank=genus
|synonyms=Drepanium recurvatum
|basionyms=Stereodon recurvatus;Hypnum bridelianum
|family=Hypnaceae
|phenology=Capsules mature late summer–fall.
|habitat=Obligate calcicole, on relatively plane surfaces of cliffs and boulders, particularly where humidity is persistent
|elevation=low to high elevations (0-2000 m)
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Europe;Asia.
|reference=None
|publication title=Enum. Bryin. Exot., suppl.
|publication year=1893
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V28/V28_849.xml
|genus=Hypnum
|species=Hypnum recurvatum
}}<!--

-->[[Category:Treatment]][[Category:Hypnum]]