View source for Polytrichastrum ohioense

{{Treatment/ID
|accepted_name=Polytrichastrum ohioense
|accepted_authority=(Renauld & Cardot) G. L. Smith
|publications={{Treatment/Publication
|title=Mem. New York Bot. Gard.
|place=21(3): 35. 1971,
}}
|basionyms={{Treatment/ID/Basionym
|name=Polytrichum ohioense
|authority=Renauld & Cardot
|publication_title=Rev. Bryol.
|publication_place=12: 11. 1885
}}
|synonyms=
|hierarchy=Polytrichaceae;Polytrichastrum;Polytrichastrum ohioense
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polytrichaceae]]</div><div class="higher-taxon"><small>genus</small>[[Polytrichastrum]]</div><div class="higher-taxon"><small>species</small>[[Polytrichastrum ohioense]]</div></div>
|volume=Volume 27
|mention_page=page 125, 132, 133
|treatment_page=page 131
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>moderately robust, dark-green to brown plants in loose tufts. <b>Stems</b> 1.5–3(–6) cm high, usually unbranched, sparsely radiculose at or near the base. <b>Leaves</b> 6–10 mm, erect and loosely appressed with recurved tips when dry, spreading and broadly recurved when moist; sheath ovoid, hyaline-margined, golden brown, contracted to the blade, the cells at the shoulders forming a differentiated hinge; blade long-lanceolate, coarsely toothed at least in distal 2/3, acuminate, ending in a short, reddish, toothed awn; costa shortly excurrent, sparsely toothed abaxially near the tip; marginal lamina 1-stratose, narrow, mostly erect; lamellae 6–7 cells high, entire in side view, with nearly straight sides when viewed from above, the terminal cells in section rounded or more often transversely elliptical, ± flat-topped, with a much smaller lumen than the others and the free wall conspicuously thickened, often brownish, smooth, sometimes finely striate-papillose; sheath cells 40–50 × 16–20 µm (3:1); cells of marginal lamina 12–15 µm, subquadrate; perichaetial leaves with long, sheathing bases and conspicuous golden yellow awns. <b>Seta</b> 2–9 cm, stout, yellowish, much longer than the leafy shoots. <b>Capsule</b> 3–5 mm, pale brown, suberect to strongly inclined, 4-angled; hypophysis cylindric but not sharply delimited; exothecial cells not bulging or mammillose, without a central thin spot; stomata numerous, on the distal part of the hypophysis; peristome 300 µm, divided to 0.6, the teeth ca. 50, pale brown. <b>Spores</b> 11–14 µm.</span><!--

-->{{Treatment/Body
|habitat=Soil, humus, rocks, dry to moist woods
|elevation=low to moderate elevations
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;Ga.;Ill.;Ind.;Iowa;Kans.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;Tenn.;Va.;W.Va.;Wis.
|discussion=<p><i>Polytrichastrum ohioense</i> is endemic to eastern North America, and is common in the Appalachian mixed oak (formerly oak-chestnut) forest, the oak-hickory forest of the interior United States (to eastern Kansas and Oklahoma), the oak-pine forests of the Atlantic coastal plain, and the maple-beech forest in Indiana, Ohio, southern Michigan, and Ontario. At higher elevations and in more northerly latitudes in coniferous forests, it is replaced by <i>P. pallidisetum</i>. An isolated population of <i>P. ohioense</i> occurs in a wooded canyon in the San Andres Mountains, northeast of Las Cruces, New Mexico. In the field, <i>P. ohioense</i> has a distinctive appearance. The seta typically far exceeds the leafy shoots in length, and the perichaetial leaves have conspicuous rough, golden yellow awns. The transversely elliptical, thick-walled marginal cells of the lamellae are also unique to this species. In side view the lamellae are entire, and the lumen greatly restricted. In <i>P. pallidisetum</i> the terminal cells of the lamellae are flat-topped to shallowly retuse, and in side view the lamellae are crenulate, their marginal cells not notably thick-walled.</p>
|tables=
|references=
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-->{{#Taxon:
name=Polytrichastrum ohioense
|author=
|authority=(Renauld & Cardot) G. L. Smith
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Polytrichum ohioense
|family=Polytrichaceae
|habitat=Soil, humus, rocks, dry to moist woods
|elevation=low to moderate elevations
|distribution=Ont.;Ala.;Ark.;Conn.;Del.;Ga.;Ill.;Ind.;Iowa;Kans.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;Tenn.;Va.;W.Va.;Wis.
|reference=None
|publication title=Mem. New York Bot. Gard.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_160.xml
|genus=Polytrichastrum
|species=Polytrichastrum ohioense
}}<!--

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