Difference between revisions of "Dicranella cerviculata"
Coroll. Bryol. Eur., 13. 1856,.
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|name=Bartleya ohioensis | |name=Bartleya ohioensis | ||
|authority=H. Robinson | |authority=H. Robinson | ||
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|name=Dicranella cerviculata var. americana | |name=Dicranella cerviculata var. americana | ||
|authority=Grout | |authority=Grout | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Dicranella cerviculata var. pusilla | |name=Dicranella cerviculata var. pusilla | ||
|authority=(Hedwig) Schimper | |authority=(Hedwig) Schimper | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Dicranella ohioensis | |name=Dicranella ohioensis | ||
|authority=(Hedwig) E. Britton | |authority=(Hedwig) E. Britton | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Dicranella polaris | |name=Dicranella polaris | ||
|authority=Hedwig | |authority=Hedwig | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Dicranella pusilla | |name=Dicranella pusilla | ||
|authority=unknown | |authority=unknown | ||
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|name=Dicranum pusillum | |name=Dicranum pusillum | ||
|authority=unknown | |authority=unknown | ||
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|elevation=low to medium elevations | |elevation=low to medium elevations | ||
|distribution=Alta.;B.C. ;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Ont.;P.E.I.;Que.;Yukon;Alaska;Ky.;Maine;Md.;Mass.;Mich.;N.H.;N.J.;N.Y.;Ohio;W.Va.;Wis.;n;c Europe;Asia (Japan;e Russia). | |distribution=Alta.;B.C. ;N.B.;Nfld. and Labr. (Nfld.);N.W.T.;N.S.;Ont.;P.E.I.;Que.;Yukon;Alaska;Ky.;Maine;Md.;Mass.;Mich.;N.H.;N.J.;N.Y.;Ohio;W.Va.;Wis.;n;c Europe;Asia (Japan;e Russia). | ||
| − | |discussion=<p>The leaves of Dicranella cerviculata are not wide-spreading from a clasping base, and the perichaetial leaves are scarcely differentiated from stem leaves. The costa occupies about 1/2 of the leaf base. The nodding, asymmetric, strumose capsule becomes variously striate or furrowed when dry and empty. Bartleya ohioensis, known solely from sterile material from West Virginia and Ohio, differs from D. cerviculata only in having a somewhat better development of stereids in the costa. The report from Maryland (as B. ohioensis) was by H. Robinson and C. F. Reed (1987) and from Wisconsin by F. D. Bowers and S. K. Freckmann (1979). In Northwest Territories it is known only from Great Bear Lake and the Tuktoyaktuk Peninsula.</p> | + | |discussion=<p>The leaves of <i>Dicranella cerviculata</i> are not wide-spreading from a clasping base, and the perichaetial leaves are scarcely differentiated from stem leaves. The costa occupies about 1/2 of the leaf base. The nodding, asymmetric, strumose capsule becomes variously striate or furrowed when dry and empty. Bartleya ohioensis, known solely from sterile material from West Virginia and Ohio, differs from <i>D. cerviculata</i> only in having a somewhat better development of stereids in the costa. The report from Maryland (as B. ohioensis) was by H. Robinson and C. F. Reed (1987) and from Wisconsin by F. D. Bowers and S. K. Freckmann (1979). In Northwest Territories it is known only from Great Bear Lake and the Tuktoyaktuk Peninsula.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year= | |publication year= | ||
|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/V27/V27_555.xml |
|genus=Dicranella | |genus=Dicranella | ||
|species=Dicranella cerviculata | |species=Dicranella cerviculata | ||
Revision as of 16:55, 18 September 2019
Plants to 6 mm (or rarely, when sterile, to 30 mm), in dull, yellow-brown tufts. Leaves 2.5–3 mm, erect-spreading and flexuose or secund, linear-lanceolate, gradually subulate, slenderly acute or ± blunt; margins erect, entire or slightly serrulate near the apex; costa long-excurrent, occupying about 1/2 the leaf base; distal cells long-rectangular, 5–10:1. Sexual condition dioicous. Seta 5–6(–12) mm, yellow, becoming brownish with age. Capsule 0.7–1 mm, nodding and curved-asymmetric, short-oval, strumose, furrowed when dry and empty; annulus a single row of small, persistent cells; operculum slenderly long-rostrate, curved; peristome teeth 270–350 µm, divided 1/2 length distally or more. Spores 16–21 µm, smooth to indistinctly roughened.
Phenology: Capsules mature summer.
Habitat: Disturbed sand, clay, or peaty soil, often on roadbanks
Elevation: low to medium elevations
Distribution
Alta., B.C., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Yukon, Alaska, Ky., Maine, Md., Mass., Mich., N.H., N.J., N.Y., Ohio, W.Va., Wis., n, c Europe, Asia (Japan, e Russia).
Discussion
The leaves of Dicranella cerviculata are not wide-spreading from a clasping base, and the perichaetial leaves are scarcely differentiated from stem leaves. The costa occupies about 1/2 of the leaf base. The nodding, asymmetric, strumose capsule becomes variously striate or furrowed when dry and empty. Bartleya ohioensis, known solely from sterile material from West Virginia and Ohio, differs from D. cerviculata only in having a somewhat better development of stereids in the costa. The report from Maryland (as B. ohioensis) was by H. Robinson and C. F. Reed (1987) and from Wisconsin by F. D. Bowers and S. K. Freckmann (1979). In Northwest Territories it is known only from Great Bear Lake and the Tuktoyaktuk Peninsula.
Selected References
None.