Difference between revisions of "Plagiomnium ciliare"
Ann. Bot. Fenn. 5: 146. 1968.
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|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Mnium affine var. ciliare | |name=Mnium affine var. ciliare | ||
|authority=Müller Hal. | |authority=Müller Hal. | ||
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|publication_title=Syn. Musc. Frond. | |publication_title=Syn. Musc. Frond. | ||
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name=Plagiomnium ciliare | name=Plagiomnium ciliare | ||
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|authority=(Müller Hal.) T. J. Koponen | |authority=(Müller Hal.) T. J. Koponen | ||
|rank=species | |rank=species | ||
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|publication title=Ann. Bot. Fenn. | |publication title=Ann. Bot. Fenn. | ||
|publication year=1968 | |publication year=1968 | ||
| − | |special status=Endemic; | + | |special status=Endemic;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V28/V28_367.xml |
|genus=Plagiomnium | |genus=Plagiomnium | ||
|species=Plagiomnium ciliare | |species=Plagiomnium ciliare | ||
Latest revision as of 21:35, 5 November 2020
Erect stems 2–5(–9) cm, not dendroid; sterile stems to 10 cm. Leaves green or yellow-green, crisped and contorted when dry, flat when moist, ovate, elliptic, oblong-elliptic, or rarely obovate, (3–)4–6(–10) mm; base narrowly long-decurrent; margins toothed to near base, smaller leaves sometimes nearly entire, teeth blunt or less commonly sharp, of (1–)2–3(–4) cells; apex rounded, occasionally truncate or obtuse, rarely retuse, cuspidate or apiculate, cusp occasionally toothed; costa percurrent, excurrent, or rarely subpercurrent; medial laminal cells elongate, rarely ± isodiametric (especially near margins), 45–85 µm, less than 1/2 size near margins, in ± longitudinal, occasionally diagonal rows, collenchymatous, sometimes weakly, walls pitted, pits sometimes indistinct or absent; marginal cells linear, sometimes short-linear or rhomboidal, in (2–)3–4 rows. Sexual condition dioicous. Seta 1–3, yellowish or brownish green, 2–4 cm. Capsule pendent, cylindric, 3–4.5 mm, neck not distinct; operculum conic-apiculate. Spores 18–24 µm.
Phenology: Capsules mature late spring.
Habitat: Humus, soil, logs, rock, tree bases in swamps and mesic hardwood forests, wet and fire-dependent forests/woodlands, cliffs/talus
Elevation: low elevations
Distribution
Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Ala., Alaska, Ariz., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Kans., La., Maine, Md., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.Y., N.C., Ohio, Okla., Oreg., Pa., S.Dak., Tenn., Tex., Va., Wash., W.Va.
Discussion
Populations of Plagiomnium ciliare having leaves with poorly developed marginal teeth appear to be fairly common and are often difficult to identify. When well developed, the teeth are straight-sided, fingerlike, and sometimes perpendicular to the margins. The usually long-decurrent leaf bases separate this species from P. ellipticum and P. rostratum. The rounded marginal teeth and, in many instances, the rounded leaf apices separate it from P. medium, the species most commonly confused with it in herbaria. Plagiomnium ciliare and P. ellipticum were considered by H. A. Crum and L. E. Anderson (1981) to be varieties of Mnium affine Blandow ex Funck [Plagiomnium affine (Blandow ex Funck) T. J. Koponen]. However, P. affine is a Eurasian species that is absent from North America.
Selected References
None.