View source for Gymnostomum aeruginosum

{{Treatment/ID
|accepted_name=Gymnostomum aeruginosum
|accepted_authority=Smith
|publications={{Treatment/Publication
|title=Fl. Brit.
|place=3: 1163. 1804,
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Anoectangium arizonicum
|authority=E. B. Bartram
}} {{Treatment/ID/Synonym
|name=Gymnostomum clintonii
|authority=Austin
}} {{Treatment/ID/Synonym
|name=Gymnostomum rupestre
|authority=Schwägrichen
}} {{Treatment/ID/Synonym
|name=Gymnostomum tophaceum
|authority=Austin
}}
|hierarchy=Pottiaceae;Pottiaceae subfam. Barbuloideae;Gymnostomum;Gymnostomum aeruginosum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pottiaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Pottiaceae subfam. Barbuloideae]]</div><div class="higher-taxon"><small>genus</small>[[Gymnostomum]]</div><div class="higher-taxon"><small>species</small>[[Gymnostomum aeruginosum]]</div></div>
|volume=Volume 27
|mention_page=page 524, 530, 535, 537, 564, 578, 580
|treatment_page=page 536
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>light to dark green, cespitose, crowded or rarely forming a dense turf. <b>Cauline</b> leaves long-rectangular or long-elliptical to broadly lanceolate, straight to strongly reflexed, 0.5–2 mm, apex rounded to broadly acute, occasionally apiculate; distal cells sometimes 2-stratose marginally in patches or entirely and also medially in patches, distal laminal cells 7–13 µm in width, 1:1; costa subpercurrent to percurrent. <b>Specialized</b> asexual reproduction absent. <b>Perichaetia</b> single on an elongate axis, terminating the axis; perichaetial leaves loose and flexuose, ligulate to ovate-lanceolate, little sheathing at base, basal cells rectangular, smooth, distal laminal cells quadrate, strongly papillose. <b>Capsule</b> long- or rarely short-cylindric, wide-mouthed, with flat or weakly convex exothecial cells, these usually 20–25(–30) µm wide, though somewhat bulging near the neck.</span><!--

-->{{Treatment/Body
|phenology=Capsules mature summer–fall.
|habitat=Calcareous rock in wet situations, especially near waterfalls, moist gorge walls, rarely soil
|elevation=low to high elevations (0-3000 m)
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Idaho;Ill.;Ind.;Iowa;Ky.;La.;Maine;Mass.;Mich.;Minn.;Mo.;Mont.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Mexico;West Indies;Central America;South America;Eurasia;Africa;Atlantic Islands (Canary Islands);Pacific Islands (New Zealand);Australia.
|discussion=<p>Small forms of <i>Gymnostomum aeruginosum</i> may be similar to <i>G. viridulum</i> in the short-cylindric capsule, but they lack differentiated perichaetial leaves and gemmae. Large forms are occasionally encountered (e.g., Newfoundland, Conception Bay, Brassard 11754, UBC) with a broad, stout excurrent costa to 6 cells across at mid leaf. <i>Gymnostomum aeruginosum</i> differs from <i>Hymenostylium recurvirostrum</i>, a commonly co-occurring calciphilic hygrophyte, in its leaves usually having a long-rectangular shape, being less tapering, the costa commonly subpercurrent with laminal cells crisscrossing beyond the end of the costa, and the capsule dark brown and shining. Also, <i>G. aeruginosum</i> generally has more obscure distal laminal cells, seldom elongate medially in cauline leaves, and the leaf apex is commonly blunt and seldom has an apiculus of a single cell. The adaxial costal cells are elongate in <i>H. recurvirostrum</i> but elongate only in much reduced plants of <i>G. aeruginosum</i> (or other species of the genus).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Gymnostomum aeruginosum
|author=
|authority=Smith
|rank=species
|parent rank=genus
|synonyms=Anoectangium arizonicum;Gymnostomum clintonii;Gymnostomum rupestre;Gymnostomum tophaceum
|basionyms=
|family=Pottiaceae
|phenology=Capsules mature summer–fall.
|habitat=Calcareous rock in wet situations, especially near waterfalls, moist gorge walls, rarely soil
|elevation=low to high elevations (0-3000 m)
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Nunavut;Ont.;P.E.I.;Que.;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Idaho;Ill.;Ind.;Iowa;Ky.;La.;Maine;Mass.;Mich.;Minn.;Mo.;Mont.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Oreg.;Pa.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;Mexico;West Indies;Central America;South America;Eurasia;Africa;Atlantic Islands (Canary Islands);Pacific Islands (New Zealand);Australia.
|reference=None
|publication title=Fl. Brit.
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V27/V27_771.xml
|subfamily=Pottiaceae subfam. Barbuloideae
|genus=Gymnostomum
|species=Gymnostomum aeruginosum
}}<!--

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