Difference between revisions of "Meesia triquetra"
Nova Acta Regiae Soc. Sci. Upsal. 12: 357. 1844.
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|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Mnium triquetrum | |name=Mnium triquetrum | ||
|authority=Linnaeus ex Jolyclerc | |authority=Linnaeus ex Jolyclerc | ||
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|publication_title=Syst. Sex. Vég., | |publication_title=Syst. Sex. Vég., | ||
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name=Meesia triquetra | name=Meesia triquetra | ||
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|publication title=Nova Acta Regiae Soc. Sci. Upsal. | |publication title=Nova Acta Regiae Soc. Sci. Upsal. | ||
|publication year=1844 | |publication year=1844 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_34.xml |
|genus=Meesia | |genus=Meesia | ||
|species=Meesia triquetra | |species=Meesia triquetra | ||
Latest revision as of 21:35, 5 November 2020
Plants 0.1–1.2 cm. Stem leaves contorted when dry, wide-spreading and distinctly 3-ranked when moist, ovate-lanceolate, 1.5–4 mm; base decurrent; margins plane to weakly reflexed proximally, serrulate distally; apex acute; costa narrow, ending in or just before apex; inner laminal cells smaller, walls thicker than marginal cells. Sexual condition dioicous. Seta 3–10 cm. Capsule 3–4.5 mm. Spores 33–38 µm.
Habitat: Rich fens, arctic and boreal areas
Elevation: moderate to high elevations
Distribution
Greenland, Alta., B.C., Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, Calif., Mich., Minn., Mont., Nebr., N.J., N.Y., Oreg., S.Dak., Vt., n Eurasia.
Discussion
Meesia triquetra is frequent where appropriate habitat is available, and disjunct in a few locations farther south. The species is usually easily distinguished by its three-ranked, widely spreading leaves that have serrulate margins. The sexual condition is dioicous.
Selected References
None.