View source for Brachythecium albicans

{{Treatment/ID
|accepted_name=Brachythecium albicans
|accepted_authority=(Hedwig) Schimper in P. Bruch and W. P. Schimper
|publications={{Treatment/Publication
|title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|place=6: 23. 1853
|year=1853
}}
|basionyms={{Treatment/ID/Basionym
|name=Hypnum albicans
|authority=Hedwig
|rank=species
|publication_title=Sp. Musc. Frond.,
|publication_place=251. 1801
}}
|synonyms={{Treatment/ID/Synonym
|name=Brachythecium albicans var. occidentale
|authority=Renauld & Cardot
|rank=variety
}} {{Treatment/ID/Synonym
|name=B. beringianum
|authority=Kindberg
|rank=species
}} {{Treatment/ID/Synonym
|name=B. pseudoalbicans
|authority=(Hedwig) H. Robinson
|rank=species
}} {{Treatment/ID/Synonym
|name=Chamberlainia albicans
|authority=
|rank=species
}}
|hierarchy=Brachytheciaceae;Brachythecium;Brachythecium albicans
|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 albicans]]</div></div>
|volume=Volume 28
|mention_page=page 416, 424, 425, 427, 428, 465
|treatment_page=page 423
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>large, occasionally quite small, in loose to moderately dense mats, usually pale stramineous, occasionally light green, very rarely deep green. <b>Stems</b> to 10(–16) cm, creeping to ascending, terete-foliate, irregularly pinnate, branches to 8 mm, straight to flexuose, terete-foliate. <b>Stem</b> leaves erect- appressed, straight or slightly falcate, closely imbricate, ovate-lanceolate, broadest at 1/7–1/5 leaf length, concave, not or slightly plicate, (1.3–)1.7–2.8 × (0.4–)0.6–1.1 mm; base tapered, broadly or occasionally narrowly long-decurrent; margins plane or often recurved almost throughout, entire, rarely serrulate; apex gradually tapered to acumen, acumen long; costa to 40–70% leaf length, slender, terminal spine absent; alar cells subquadrate to short-rectangular, small, 15–30 × 11–15 µm, walls moderately thick, region extensive, of 10–15 × 6–8 cells; laminal cells linear, 40–100(–125) × 5–9 µm; basal cells 10–15 µm wide, region in 3 rows. <b>Branch</b> leaves similar, smaller. <b>Sexual</b> condition dioicous. <b>Seta</b> reddish orange, 1–2 cm, smooth. <b>Capsule</b> inclined to horizontal, reddish orange, elongate, curved, 2 mm; annulus separating by fragments; operculum long-conic. <b>Spores</b> dimorphic: 15–18 µm or 11–13 µm; these two types are in proportion 1:1, as tetrads have two big and two small spores.</span><!--

-->{{Treatment/Body
|habitat=Soil, sandy, open and grassy places, rock
|elevation=low to high elevations (0-3600 m)
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr.;N.S.;Que.;Alaska;Calif.;Colo.;Idaho;Mont.;Oreg.;S.Dak.;Wash.;Wyo.;Mexico (Nuevo León);South America;Europe;n Asia;Atlantic Islands;Pacific Islands (New Zealand);Australia.
|discussion=<p>Despite numerous records and misidentified herbarium collections from many of the states, <i>Brachythecium albicans</i> is common only in the Pacific coast region and the mountains of the West. The species is distinguished by the pale color, julaceous foliage, filiform and somewhat secund acumina, entire leaf margins that are often recurved along most of the leaf length, and elongate alar region. This species is variable, often producing very thin shoots, with stem leaves as small as 1.3 × 0.4 mm, but usually such collections include some larger shoots that imply more typical <i>B. albicans</i>. Branches of specimens from California can be as long as 18 mm. Differentiation from the Arctic 15. <i>B. coruscum</i> is discussed under that species. The name <i>B. albicans</i> is used, despite preliminary molecular data that demonstrate differences between American and northeastern Asian populations from European plants; if further study proves that they are not conspecific, then the name B. pseudoalbicans should be used for at least the populations from western North America.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Brachythecium albicans
|authority=(Hedwig) Schimper in P. Bruch and W. P. Schimper
|rank=species
|parent rank=genus
|synonyms=Brachythecium albicans var. occidentale;B. beringianum;B. pseudoalbicans;Chamberlainia albicans
|basionyms=Hypnum albicans
|family=Brachytheciaceae
|habitat=Soil, sandy, open and grassy places, rock
|elevation=low to high elevations (0-3600 m)
|distribution=Greenland;Alta.;B.C.;Nfld. and Labr.;N.S.;Que.;Alaska;Calif.;Colo.;Idaho;Mont.;Oreg.;S.Dak.;Wash.;Wyo.;Mexico (Nuevo León);South America;Europe;n Asia;Atlantic Islands;Pacific Islands (New Zealand);Australia.
|reference=None
|publication title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|publication year=1853
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_655.xml
|genus=Brachythecium
|species=Brachythecium albicans
}}<!--

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