Overview

Distribution

National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Distribution: China, Himalayas, Russia (Siberia), Europe, North and South America, and North Africa.
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Physical Description

Morphology

Description

Plants moderate-sized, relatively robust, smaller in exposed sites, elongated in shaded sites, soft, capitulum ± large; pale green, green, yellowish, yellow-brown, brown, pinkish, purplish; with strong metallic sheen when dry. Stems brown or purplish; superficial cortical cells aporose. Stem leaves triangular to triangular-lingulate, 1.2-1.7 mm, apex acute to sometimes shortly cuspidate due to involute margins near apex, border narrow at base (less than 0.25 width); hyaline cells mostly efibrillose and aporose, 0-1(-2)-septate. Branches long and tapering, unranked. Branch fascicles with 2 spreading and 1-2 pendent branches. Branch leaves 1.3-2.7 mm, ovate to ovate-lanceolate, 1.3-2.7 mm, concave, straight, apex involute; hyaline cells on convex surface with 2-6 large, narrowly elliptic ringed pores along the commissures, but usually absent from marginal regions of leaf, concave surface aporose or with 1-4 large round pores per cell especially near base. Sexual condition monoicous. Spores 22-32 µm, finely to irregularly coarsely-papillose on proximal surface, irregularly coarsely papillose on distal surface; proximal laesura less than 0.5 spore radius.
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Description

Plants soft, whitish to grayish green, tinged with reddish brown, shiny when dry, in loose tufts. Stem cortex in 3–4 layers, hyaline cells without fibrils and pores or occasional with a single pore; central cylinder pale green or pale reddish purple. Stem leaves 1.3–1.5 mm × 0.7–0.9 mm, oblong isosceles-triangular, broadly acute, abruptly narrowed to a short, concave-cuspidate point, slightly dentate or lacerate at the apex; borders narrow above, clearly widened near the leaf base; upper hyaline cells rhomboidal, often divided more than once, sometimes divided several times, without fibrils and pores, or rarely with the traces of fibrils. Branches in fascicles of 3–4, with 2 spreading. Branch leaves 1.6–1.8 mm × 0.5–0.6 mm, variable in size, usually ovate-lanceolate, gradually narrowed to a blunt acumen, dentate across the apex; hyaline cells fibrillose, with small pores at the upper ends or lower ends in the upper half, gradually becoming large, rounded pores in the lower half on the ventral surface, with large, half-elliptic pores at the opposite ends along commissural rows on the dorsal surface; green cells in cross section narrowly triangular or trapezoidal, exposed on the ventral surface, enclosed by hyaline cells on the dorsal surface. Dioicous; antheridial branches reddish purple. Perigonial leaves large, ovate, borders wide, hyaline cells without fibrils and pores. Spores yellow, papillose, 25–31 µm in diameter.
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Diagnostic Description

Synonym

Sphagnum acutifolium Schrad. var. plumosum Mild., Bryol. Siles. 382. 1869. Sphagnum plumulosum Röll, Flora 69: 89. 1886, nom. inval. (as Formenreihe).
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Ecology

Habitat

Habitat: on wet ground and grasslands in high mountain forests.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Sphagnum subnitens

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Sphagnum subnitens

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Notes

Comments

Sporophytes are common in Sphagnum subnitens. The ecology of this species is unclear because of past taxonomic confusion with S. subfulvum. However, the two clearly differ in gametophyte and spore morphology (K. I. Flatberg 1985; Cao T. and D. H. Vitt 1986). The metallic sheen and strongly pointed stem leaves will distinguish this species from the somewhat similar S. capillifolium. See also discussion under 83. S. subfulvum.
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Comments

This species is similar to Sphagnum junghuhnianum, but it differs in having clearly widened borders near the leaf base, and by having multi-divided hyaline cells of stem leaves without fibrils and pores.
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