Sphagnum fimbriatum |
Sphagnum rubroflexuosum |
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fringe bogmoss, fringe peat-moss, sphagnum |
sphagnum |
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Habit | Plants typically small and slender, larger and compact in the Arctic, capitulum small to moderate-sized, often with a conspicuous terminal bud; green, yellowish brown to brown; without metallic lustre when dry. | Plants small, soft, fairly weak-stemmed; pale green to pale yellow brown; capitulum not 5-radiate or only weakly so, may be tinged with red; loose to somewhat compact. | ||||
Stem(s) | leaves spatulate to broad-spatulate, 0.8–1.5(–2) mm, strongly lacerate across the broad apex and often part way down the margins, border scarcely to strongly broadened at base (0.25 width of base or less); hyaline cells rhomboid, efibrillose and often 1–2-septate. |
leaves 0.7–1 mm (to 1.2 mm in hemiisophyllous forms) elongate-triangular to triangular-lingulate, apex obtuse-erose, to apiculate; usually fibrillose at least apically; in hemiisophyllous forms spreading and in anisophyllous forms appressed; hyaline cells often septate at base. |
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Branches | not 5-ranked, quite terete, long, and slender Branch fascicles with 1– 2 spreading and 1–2 pendent branches. |
moderately long and tapering, unranked to weakly 5-ranked, leaves not much elongated at distal end. |
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Branch leaves | ovate to ovate-lanceolate; 1.1–1.5(–2) mm, slightly concave, straight; apex involute; margins entire; hyaline cells on convex surface with numerous pores along the commissures grading from small pores near leaf apex to large pores at base, concave surface with large round pores at leaf apex and along margins. |
1–1.7 mm, ovate-lanceolate, undulate and recurved when dry; hyaline cells on convex surface with 3–10 round pores per cell in the cell angles and free, on concave surface with round wall thinnings in the ends and angles. |
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Sexual condition | often monoicous. |
unknown. |
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Spores | 20–27 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius. |
not seen. |
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Branch | fascicles with 2 spreading and 2–3 pendent branches.; branch stem cortex enlarged and with conspicuous retort cells. |
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Sphagnum fimbriatum |
Sphagnum rubroflexuosum |
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Habitat | Forming carpets in weakly minerotrophic fens | |||||
Elevation | moderate elevations | |||||
Distribution |
North America; South America; Eurasia; Pacific Islands (New Zealand)
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MD; PA |
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Sporophytes are unknown in Sphagnum rubroflexuosum. Compared to the closely related S. flexuosum, this species is paler and may have a reddish stem. Otherwise, identification must be made microscopically on the basis of branch leaf porosity. Although we have not seen this species in the field, it should be separable from S. majus, the only other large, aquatic species of sect. Cuspidata, in its range by traits of stem leaves and its color. Sphagnum majus is also typically a much darker brown. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 27, p. 92. | FNA vol. 27, p. 76. | ||||
Parent taxa | Sphagnaceae > Sphagnum > sect. Acutifolia | Sphagnaceae > Sphagnum > sect. Cuspidata | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Wilson & Hooker: in J. D. Hooker, Fl. Antarct., 398. (1847) | R. E. Andrus: Bryologist 91: 364, figs. 1–8. (1988) | ||||
Web links |