Overview

Distribution

National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Distribution: China, India, and Himalayas.
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Physical Description

Morphology

Description

Plants robust, up to 15 cm high, whitish green to brownish yellow, shiny when dry. Stem cortex in 2–3 layers, hyaline cells thin-walled, without fibrils and pores; central cylinder yellowish red. Stem leaves 1.3–1.4 mm × 0.7–0.8 mm, isosceles-triangular, with dentate, narrow and blunt apices; borders differentiated, slightly widened at base; hyaline cells narrowly rhomboidal below, short-rhomboidal above, mostly divided, without fibrils, sometimes with the traces of fibrils in the upper cells, numerous irregular pores on the ventral surface. Branch leaves 1.4–1.7 mm × 0.6–0.8 mm, broadly ovate-lanceolate at base, abruptly narrowed to acuminate apex, margins involute above, dentate at the apex; borders narrowed, hyaline cells densely fibrillose, with numerous large, rounded pores near the margins on the ventral surface, fewer near the central parts, small pores in the upper cells and gradually enlarged to elliptic pores below on the dorsal surface, with large, rounded pores near margins at base; green cells in cross section isosceles-triangular, exposed on the ventral surface, enclosed by hyaline cells on the dorsal surface. Dioicous. Sporophytes not seen.
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Description

Plants moderate-sized, soft, loosely tufted, slender, capitulum flat-topped to rounded; pale, dirty green, yellowish to brownish; without metallic lustre when dry. Stems brown to reddish brown; superficial cortical cells usually aporose, but some have a single round to elliptical pore in the distal portion of the cell free from the cell wall. Stem leaves triangular-lingulate, 1.2-1.6 mm, broadly apex acute to narrowly truncate and toothed, border narrow or indistinct at base (less than 0.25 the width); hyaline cells rhomboid, mostly 0-1-septate; convex surface with membrane pleats, concave surface with 1-3 rounded membrane gaps occupying most of cell. Branches somewhat 5-ranked. Branch fascicles with 2 spreading and 1-2 pendent branches. Branch leaves ovate-lanceolate, 1.3-2 mm, strongly concave, apex strongly involute; margins entire to somewhat toothed near apex, hyaline cells on convex surface with numerous ringed elliptic pores (6-10) along commissures, concave surface mostly aporose except near margins; Sexual condition dioicous or monoicous. Spores 21-23 µm; minutely papillose.
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Diagnostic Description

Synonym

Sphagnum junghuhnianum subsp. pseudomolle (Warnstorf) H. Suzuki; S. pseudomolle Warnstorf
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Ecology

Habitat

Habitat: in bogs, on moist rocky soil or rocks near streams with dripping water under coniferous forests.
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: GNR - Not Yet Ranked

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Notes

Comments

This species is similar to Sphagnum junghuhnianum, but it differs from the latter in having the divided hyaline cells of stem leaves often without distinct fibrils and pores and in having branch leaves broadly ovate with abruptly acuminate apices. In contrast, S. junghuhnianum has undivided hyaline cells of stem leaves with fibrils and pores and has branch leaves narrowly ovate with gradually acuminate apices.
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Comments

Sphagnum junghuhnianum in the flora area is known only from the Queen Charlotte Islands.

  

Sporophytes of Sphagnum junghuhnianum were not seen. Three other large, brown species of sect. Acutifolia have stem leaves without fimbriate to lacerate apices, S. subnitens (forms without red color), S. subfulvum, and S. flavicomans. Sphagnum flavicomans has a more pointed stem leaf and a darker brown color as well as a strongly different ecology and range. Both S. subnitens and S. subfulvum have a glossy sheen when dry that is lacking in S. junghuhnianum. Sexual condition and spore characters were taken from H. A. Crum (1984).

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