View source for Plagiothecium piliferum

{{Treatment/ID
|accepted_name=Plagiothecium piliferum
|accepted_authority=(Swartz) Schimper in P. Bruch and W. P. Schimper
|publications={{Treatment/Publication
|title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|place=5: 186. 1851
|year=1851
}}
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}
|basionyms={{Treatment/ID/Basionym
|name=Leskea pilifera
|authority=Swartz
|rank=species
|publication_title=in C. J. Hartman, Handb. Skand. Fl.,
|publication_place=419. 1820
}}
|synonyms={{Treatment/ID/Synonym
|name=Dolichotheca pilifera
|authority=(Swartz) Podp ĕ ra
|rank=species
}} {{Treatment/ID/Synonym
|name=Isopterygium piliferum
|authority=(Swartz) Loeske
|rank=species
}} {{Treatment/ID/Synonym
|name=Plagiotheciella pilifera
|authority=(Swartz) Brotherus
|rank=species
}}
|hierarchy=Plagiotheciaceae;Plagiothecium;Plagiothecium piliferum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Plagiotheciaceae]]</div><div class="higher-taxon"><small>genus</small>[[Plagiothecium]]</div><div class="higher-taxon"><small>species</small>[[Plagiothecium piliferum]]</div></div>
|volume=Volume 28
|mention_page=page 484
|treatment_page=page 485
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>in dense mats, light green to yellowish, glossy. <b>Stems</b> to 6 cm, 1–1.5 mm wide across leafy stem, prostrate, complanate-foliate to subjulaceous. <b>Leaves</b> erect, appressed, imbricate, oblong-ovate, symmetric, concave, 0.8–2 × 0.4–0.8 mm; margins narrowly recurved nearly to apex, entire or minutely serrulate at apex; apex abruptly contracted to long-filiform acumen, flexuose; costa ending just beyond leaf base, sometimes ecostate; alar cells rectangular, 16–75 × 7–20 µm, in 2–4 vertical rows, terminating in 1 cell at base, region triangular; medial laminal cells 36–96 × 3–5 µm. <b>Specialized</b> asexual reproduction unknown. <b>Sexual</b> condition autoicous, usually fruiting. <b>Seta</b> yellow to red, 0.8–1.5 cm, straight. <b>Capsule</b> erect or sometimes slightly inclined, light brown to yellowish or reddish when mature, straight, 1–4 × 0.5–1 mm, smooth or slightly wrinkled when dry, strongly wrinkled at neck; operculum conic, 0.4–0.7 mm; endostome cilia usually absent, or 1 or 2, rudimentary. <b>Spores</b> 9–13 µm.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature spring–summer.
|habitat=Coniferous or alder-maple woods, on trees, rotten logs, noncalcareous cliffs and boulders, wood in swampy areas
|elevation=low to moderate elevations (30-1500 m)
|distribution=Greenland;B.C.;N.W.T.;Que.;Alaska;Calif.;Idaho;Mont.;Oreg.;Wash.;Europe;Asia.
|discussion=<p><i>Plagiothecium piliferum</i> is easily distinguished by the concave, symmetric leaves with abruptly contracted, long-filiform, flexuose acumina, sometimes to 1/3 the leaf length, and the erect, straight capsules. Although the main center of distribution for the species is in the Pacific Northwest, it has disjunctive occurrences in northern Quebec (James Bay region) and southwestern Greenland. A scanning electron microscope study of the spores of <i>Plagiothecium</i> (R. R. Ireland 1987) revealed that the sculpturing can be used to distinguish <i>P. piliferum</i> from the other North American species of this genus: spores of <i>P. piliferum</i> have branched-baculate ornamentation, the elements covered with conic papillae; the other species have gemmate ornamentation, the elements covered with high-conic to low, rounded papillae.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Plagiothecium piliferum
|authority=(Swartz) Schimper in P. Bruch and W. P. Schimper
|rank=species
|parent rank=genus
|synonyms=Dolichotheca pilifera;Isopterygium piliferum;Plagiotheciella pilifera
|basionyms=Leskea pilifera
|family=Plagiotheciaceae
|phenology=Capsules mature spring–summer.
|habitat=Coniferous or alder-maple woods, on trees, rotten logs, noncalcareous cliffs and boulders, wood in swampy areas
|elevation=low to moderate elevations (30-1500 m)
|distribution=Greenland;B.C.;N.W.T.;Que.;Alaska;Calif.;Idaho;Mont.;Oreg.;Wash.;Europe;Asia.
|reference=None
|publication title=in P. Bruch and W. P. Schimper, Bryol. Europ.
|publication year=1851
|special status=Illustrated
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V28/V28_755.xml
|genus=Plagiothecium
|species=Plagiothecium piliferum
}}<!--

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