View source for Dicranum muehlenbeckii

{{Treatment/ID
|accepted_name=Dicranum muehlenbeckii
|accepted_authority=Bruch & Schimper
|publications={{Treatment/Publication
|title=Bryol. Europ.
|place=1: 142, plate 78. 1847,
}}
|basionyms=
|synonyms=
|hierarchy=Dicranaceae;Dicranum;Dicranum muehlenbeckii
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Dicranaceae]]</div><div class="higher-taxon"><small>genus</small>[[Dicranum]]</div><div class="higher-taxon"><small>species</small>[[Dicranum muehlenbeckii]]</div></div>
|volume=Volume 27
|mention_page=page 400, 410
|treatment_page=page 414
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>in dense tufts, green to yellowish green, dull. <b>Stems</b> 3–7 cm, densely tomentose with reddish brown rhizoids. <b>Leaves</b> erect-spreading, strongly cirrate to crisped when dry, smooth, (4–)5–6.5(–8) × 0.5–1 mm, concave below, tubulose above, lanceolate, acute; margins entire below, slightly serrate to entire above; laminae 1-stratose; costa excurrent, 1/6–1/4 the width of the leaves at base, smooth or weakly toothed above on abaxial surface, abaxial ridges absent, with a row of guide cells, two stereid bands extending to the apex, adaxial and abaxial epidermal layers of cells differentiated; cell walls between lamina cells slightly bulging; leaf cells smooth to slightly rough above on abaxial surface; alar cells 2-stratose, differentiated, sometimes extending to costa; proximal laminal cells rectangular, pitted, (19–)37–55(–73) × (5–)9–12(–14) µm; distal laminal cells short, irregularly quadrate-rectangular, not pitted, (7–)11–12(–23) × (6–)8–9(–13) µm. <b>Sexual</b> condition pseudomonoicous; dwarf males on stem rhizoids of female plants; interior perichaetial leaves abruptly short-acuminate, convolute-sheathing. <b>Seta</b> 1.3–3 cm, solitary, yellowish to yellowish brown. <b>Capsule</b> 2–4 mm, long-cylindric, arcuate and inclined to ± straight and nearly erect, smooth, striate when dry, yellowish brown; operculum 1.5–2.5 mm. <b>Spores</b> 14–24 µm.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature in summer.
|habitat=Humus and sandy soil on cliffs, bluffs, often over boulders and among rocks in open woods or exposed sites
|elevation=10-3100 m
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;Nunavut;Ont.;Que.;Yukon;Alaska;Colo.;Mass.;Mont.;Nebr.;N.J.;N.Mex.;N.Y.;N.Dak.;S.Dak.;Vt.;Wyo.;Europe;Asia.
|discussion=<p><i>Dicranum muehlenbeckii</i> is a somewhat rare species throughout North America, where it is often misidentified as other species of the genus. There should be no reason for its misidentification if its important characters are utilized for recognition. Smooth, erect-spreading leaves, cirrate to crisped when dry and tubulose above, smooth leaf cells, 1-stratose laminae, and cross section of the costa showing the abaxial and adaxial rows of cells differentiated, all combine to make the gametophytes different from all other North American species of the genus. Sporophytes are rarely produced but the 2–4 mm, solitary, long-cylindric, slightly strumose capsules, which are suberect to slightly arcuate and weakly striate when dry, are distinctive.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Dicranum muehlenbeckii
|author=
|authority=Bruch & Schimper
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Dicranaceae
|phenology=Capsules mature in summer.
|habitat=Humus and sandy soil on cliffs, bluffs, often over boulders and among rocks in open woods or exposed sites
|elevation=10-3100 m
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;Nunavut;Ont.;Que.;Yukon;Alaska;Colo.;Mass.;Mont.;Nebr.;N.J.;N.Mex.;N.Y.;N.Dak.;S.Dak.;Vt.;Wyo.;Europe;Asia.
|reference=None
|publication title=Bryol. Europ.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V27/V27_588.xml
|genus=Dicranum
|species=Dicranum muehlenbeckii
}}<!--

-->[[Category:Treatment]][[Category:Dicranum]]