View source for Hygrohypnum smithii

{{Treatment/ID
|accepted_name=Hygrohypnum smithii
|accepted_authority=(Swartz) Brotherus in H. G. A. Engler and K. Prantl
|publications={{Treatment/Publication
|title=in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam.
|place=231[I,3]: 1039. 1908
|year=1908
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Selected by author to be illustrated
}}
|basionyms={{Treatment/ID/Synonym
|name=Leskea smithii
|authority=Swartz
}}
|synonyms={{Treatment/ID/Synonym
|name=Calliergon arcticum
|authority=(Sommerfelt) Kindberg
}}{{Treatment/ID/Synonym
|name=Hypnum torrentis
|authority=Müller Hal. & Kindberg
}}{{Treatment/ID/Synonym
|name=Ochyraea smithii
|authority=(Swartz) Ignatov & Ignatova
}}
|hierarchy=Amblystegiaceae;Hygrohypnum;Hygrohypnum smithii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Amblystegiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Hygrohypnum]]</div><div class="higher-taxon"><small>species</small>[[Hygrohypnum smithii]]</div></div>
|volume=Volume 28
|mention_page=page 271, 281
|treatment_page=page 280
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>very coarse and stiff, dark green, olive green, or black, all with or without golden green or golden brown mottling. <b>Stems</b> to 8 cm, denuded proximally or with persistent, shredded bases, unbranched or irregularly branched; hyalodermis absent, epidermal cells small, walls thick, similar to subadjacent cortical cells, central strand well developed. <b>Leaves</b> stiffly and loosely imbricate to erect-spreading, straight, sometimes secund, shrinking and twisting when dry, spreading when moist, usually broadly ovate, elliptic, or orbicular, sometimes ovate, transverse, or triangular, plane or shallowly concave, (0.6–)0.8–1.2(–1.5) × (0.4–)0.6–1.2(–1.4) mm; margins plane, entire or weakly denticulate; apex usually obtuse or rounded; costa stout, single to 3/4 leaf length, often 2-fid, occasionally double and short; alar cells few, quadrate to rectangular, region not clearly differentiated; basal laminal cells usually longer, wider than medial cells, walls more incrassate, yellowing; medial cells rhomboid, fusiform to short-fusiform, or linear-flexuose, 22–48(–64) × (4–)5–7(–10) µm; apical cells rhombic or rounded; marginal cells often in ill-defined border of short cells. <b>Sexual</b> condition autoicous; perigonia and perichaetia not in bracted complex; perichaetial inner leaves lanceolate, plicate, margins recurved, entire, teeth few or absent at apex, apex acute or obtuse, costa single, strong. <b>Seta</b> red or brown, 0.8–1.7 cm. <b>Capsule</b> with endostome cilia 1–3.</span><!--

-->{{Treatment/Body
|habitat=Irrigated to emergent acidic rock in montane streams, rock, wood, in slow moving water or ponds
|elevation=moderate to high elevations (500-3100 m)
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr.;N.S.;Que.;Alaska;Calif.;Colo.;Mont.;Wash.;Europe;Atlantic Islands (Iceland).
|discussion=<p>Hygrohypnum smithii is a well-defined species, easily recognizable by the coarse, rigid habit, usually broadly ovate to orbicular leaves, and stout, usually single costa. The alar cells have incrassate, yellowing walls.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Hygrohypnum smithii
|author=
|authority=(Swartz) Brotherus in H. G. A. Engler and K. Prantl
|rank=species
|parent rank=genus
|synonyms=Calliergon arcticum;Hypnum torrentis;Ochyraea smithii
|basionyms=Leskea smithii
|family=Amblystegiaceae
|habitat=Irrigated to emergent acidic rock in montane streams, rock, wood, in slow moving water or ponds
|elevation=moderate to high elevations (500-3100 m)
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr.;N.S.;Que.;Alaska;Calif.;Colo.;Mont.;Wash.;Europe;Atlantic Islands (Iceland).
|reference=None
|publication title=in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam.
|publication year=1908
|special status=Selected by author to be illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V28/V28_436.xml
|genus=Hygrohypnum
|species=Hygrohypnum smithii
}}<!--

-->[[Category:Treatment]][[Category:Hygrohypnum]]