View source for Brachythecium coruscum

{{Treatment/ID
|accepted_name=Brachythecium coruscum
|accepted_authority=I. Hagen
|publications={{Treatment/Publication
|title=Kongel. Norske Vidensk. Selsk. Skr. (Trondheim)
|place=1908(3): 3. 1908
|year=1908
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Brachythecium albicans var. groenlandicum
|authority=C. E. O. Jensen
|rank=variety
}} {{Treatment/ID/Synonym
|name=B. groenlandicum
|authority=
|rank=species
}}
|hierarchy=Brachytheciaceae;Brachythecium;Brachythecium coruscum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Brachytheciaceae]]</div><div class="higher-taxon"><small>genus</small>[[Brachythecium]]</div><div class="higher-taxon"><small>species</small>[[Brachythecium coruscum]]</div></div>
|volume=Volume 28
|mention_page=page 416, 423, 425
|treatment_page=page 424
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>medium-sized to large, in loose to fairly dense mats, pale stramineous, pale yellow, rich golden, or light brown. <b>Stems</b> to 7 cm, creeping, ascending to upright, terete-foliate, irregularly pinnate, branches to 7 mm, straight to slightly flexuose, terete-foliate. <b>Stem</b> leaves appressed, straight or slightly falcate, closely to more rarely loosely imbricate, ovate, broadest at 1/7–1/5 leaf length, concave, plicate, 1.5–2.4 × 0.5–1 mm; base slightly narrowed, narrowly short-decurrent; margins plane or often recurved almost throughout, entire to slightly serrulate, usually more serrulate in acumen; apex gradually tapered, short to moderately acuminate; costa to 40–70% leaf length, strong proximally, gradually tapering distally, often very weak near end, terminal spine absent; decurrency cells short-rectangular; alar cells subquadrate to short-rectangular, small, 12–20 × 10–13 µm, walls moderately thick, region extensive, of 6–15 × 6–10 cells; laminal cells elongate or rarely short-rhombic throughout, 30–80 × 6–8 µm; basal cells to 8(–10) µm wide, region in 2 or 3 rows. <b>Branch</b> leaves smaller, narrower. <b>Sexual</b> condition dioicous. <b>Sporophytes</b> unknown.</span><!--

-->{{Treatment/Body
|habitat=Soil, rock, Arctic and alpine environments
|elevation=low to high elevations (0-3300 m)
|distribution=Greenland;Alta.;B.C.;Yukon;Alaska;n Eurasia.
|discussion=<p><i>Brachythecium coruscum</i> is quite common in Greenland, Alaska, and Arctic Canada. The species is similar to <i>B. albicans</i>, from which it differs principally in short leaf decurrencies that rarely come off with detached leaves and shorter laminal cells, in many leaves only few cells being longer than 50 µm. Plants of <i>B. coruscum</i> are usually more enriched with yellow than <i>B. albicans</i>, which is much paler and whitish to stramineous. The leaf acumina are erectopatent to patent, often falcate-secund, and the alar regions are square to elongate.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Brachythecium coruscum
|authority=I. Hagen
|rank=species
|parent rank=genus
|synonyms=Brachythecium albicans var. groenlandicum;B. groenlandicum
|basionyms=
|family=Brachytheciaceae
|habitat=Soil, rock, Arctic and alpine environments
|elevation=low to high elevations (0-3300 m)
|distribution=Greenland;Alta.;B.C.;Yukon;Alaska;n Eurasia.
|reference=None
|publication title=Kongel. Norske Vidensk. Selsk. Skr. (Trondheim)
|publication year=1908
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_657.xml
|genus=Brachythecium
|species=Brachythecium coruscum
}}<!--

-->[[Category:Treatment]][[Category:Brachythecium]]