Difference between revisions of "Pseudocalliergon turgescens"
Hedwigia 46: 311. 1907.
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|name=Calliergon turgescens | |name=Calliergon turgescens | ||
|authority=(T. Jensen) Kindberg | |authority=(T. Jensen) Kindberg | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Drepanocladus turgescens | |name=Drepanocladus turgescens | ||
|authority=(T. Jensen) Brotherus | |authority=(T. Jensen) Brotherus | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Scorpidium turgescens | |name=Scorpidium turgescens | ||
|authority=(T. Jensen) Loeske | |authority=(T. Jensen) Loeske | ||
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|elevation=low to high elevations | |elevation=low to high elevations | ||
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Colo.;Maine;Mass.;Mich.;Minn.;Mont.;N.Y.;Ohio;Vt.;Wyo.;South America (Bolivia;Peru);Eurasia;Africa. | |distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr.;N.W.T.;N.S.;Nunavut;Ont.;Que.;Sask.;Yukon;Alaska;Colo.;Maine;Mass.;Mich.;Minn.;Mont.;N.Y.;Ohio;Vt.;Wyo.;South America (Bolivia;Peru);Eurasia;Africa. | ||
| − | |discussion=<p>Pseudocalliergon turgescens is easily distinguished by the rather robust and usually weakly branched shoots, with straight, imbricate or sometimes slightly spreading, ovate or broadly ovate, apiculate and strongly concave leaves. Except in protected, shaded habitats, the plants have mostly a yellow or yellow-brown color. The species is often propagated vegetatively by easily detached shoot apices. Pseudocalliergon turgescens is rather frequently confused with Scorpidium scorpioides (Calliergonaceae), especially the straight-leaved phenotypes of the latter; the two are easily separated by the many small and incrassate alar cells that form indistinctly delimited alar regions and complete lack of stem hyalodermis in P. turgescens, versus the few, inflated and thin-walled alar cells in sharply delimited groups and presence of at least a partial stem hyalodermis in S. scorpioides. Scorpidium scorpioides often has red colors; this is never the case in P. turgescens.</p> | + | |discussion=<p><i>Pseudocalliergon turgescens</i> is easily distinguished by the rather robust and usually weakly branched shoots, with straight, imbricate or sometimes slightly spreading, ovate or broadly ovate, apiculate and strongly concave leaves. Except in protected, shaded habitats, the plants have mostly a yellow or yellow-brown color. The species is often propagated vegetatively by easily detached shoot apices. <i>Pseudocalliergon turgescens</i> is rather frequently confused with <i>Scorpidium scorpioides</i> (Calliergonaceae), especially the straight-leaved phenotypes of the latter; the two are easily separated by the many small and incrassate alar cells that form indistinctly delimited alar regions and complete lack of stem hyalodermis in <i>P. turgescens</i>, versus the few, inflated and thin-walled alar cells in sharply delimited groups and presence of at least a partial stem hyalodermis in <i>S. scorpioides</i>. <i>Scorpidium scorpioides</i> often has red colors; this is never the case in <i>P. turgescens</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1907 | |publication year=1907 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V28/V28_467.xml |
|genus=Pseudocalliergon | |genus=Pseudocalliergon | ||
|species=Pseudocalliergon turgescens | |species=Pseudocalliergon turgescens | ||
Revision as of 17:05, 18 September 2019
Plants large, rarely medium-sized, turgid, with golden gloss when dry. Stems slightly and irregularly branched. Stem leaves imbricate or sometimes ± spreading, straight, ovate or broadly ovate, suddenly narrowed to apex; margins entire or occasionally partly very finely denticulate; apex broadly obtuse or rounded, short-apiculate, strongly concave; costa double, to 1/5–2/5 leaf length, rarely single and slightly longer; alar cells quadrate or rectangular, slightly inflated, walls incrassate or strongly so, region transversely triangular; distal laminal cells smooth. Perichaetia with inner leaves gradually or suddenly narrowed to apex, apex short-acuminate. Capsule horizontal to inclined.
Habitat: Open, non-forested areas, lime-rich wetland habitats, small fens, small depressions in soil or on flat limestone rock, along rills or on rock flushed with calcium-rich water, submerged in small lakes or pools
Elevation: low to high elevations
Distribution
Greenland, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Nunavut, Ont., Que., Sask., Yukon, Alaska, Colo., Maine, Mass., Mich., Minn., Mont., N.Y., Ohio, Vt., Wyo., South America (Bolivia, Peru), Eurasia, Africa.
Discussion
Pseudocalliergon turgescens is easily distinguished by the rather robust and usually weakly branched shoots, with straight, imbricate or sometimes slightly spreading, ovate or broadly ovate, apiculate and strongly concave leaves. Except in protected, shaded habitats, the plants have mostly a yellow or yellow-brown color. The species is often propagated vegetatively by easily detached shoot apices. Pseudocalliergon turgescens is rather frequently confused with Scorpidium scorpioides (Calliergonaceae), especially the straight-leaved phenotypes of the latter; the two are easily separated by the many small and incrassate alar cells that form indistinctly delimited alar regions and complete lack of stem hyalodermis in P. turgescens, versus the few, inflated and thin-walled alar cells in sharply delimited groups and presence of at least a partial stem hyalodermis in S. scorpioides. Scorpidium scorpioides often has red colors; this is never the case in P. turgescens.
Selected References
None.