Sphagnum fimbriatum |
Sphagnum teres |
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fringe bogmoss, fringe peat-moss, sphagnum |
rigid peat-moss, 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 fairly slender to moderate-sized, pale green to yellowish, or reddish brown in sun-grown forms; forms loose to dense carpets. | ||||
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 generally larger than branch leaves, 1.3– 1.8 × 0.8–1 mm; elliptic to lingulate-spatulate, widest above middle, hyaline cells nonseptate. |
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Branches | not 5-ranked, quite terete, long, and slender Branch fascicles with 1– 2 spreading and 1–2 pendent branches. |
long-cylindrical, branch leaves terete to sometimes distinctly squarrose in shade forms. |
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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. |
1–1.4 mm, ovate to ovate-lanceolate, gradually narrowed to an involute tip, hyaline cells somewhat bulging on concave surface and nearly plane on convex surface, with 4–8 large, elliptic, unringed pores per cell on convex surface and 1–4 irregularly rounded pores per cell on concave surface, internal commissural walls smooth to rather strongly papillose, chlorophyllous cells ovate-triangular with the widest part at or close to the convex surface. |
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Sexual condition | often monoicous. |
dioicous. |
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Spores | 20–27 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius. |
21–26 µm; proximal and distal surfaces smooth, papillae indistinct; proximal laesura 0.5–0.6 spore radius. |
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Branch | fascicles typically with 3 spreading (sometimes 2) and 2 pendent branches.; branch stems with single layer of cortical cells. |
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Sphagnum fimbriatum |
Sphagnum teres |
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Phenology | Sporophytes uncommon, capsules mature late spring to early summer. | |||||
Habitat | Strongly minerotrophic, in open to medium rich fens, less frequent in coniferous mires, characteristic species of rich, weakly acidic to slightly basic mires | |||||
Elevation | low to high elevations | |||||
Distribution |
North America; South America; Eurasia; Pacific Islands (New Zealand)
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AK; CA; CO; CT; IA; ID; IL; IN; MA; ME; MI; MN; MT; ND; NH; NJ; NY; OH; OR; PA; VT; WA; WI; WY; AB; BC; MB; NF; NS; NT; NU; ON; QC; SK; YT; Greenland; Eurasia
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Shade forms of Sphagnum teres are often squarrose but these are usually considerably smaller than S. squarrosum. For other distinctions between these species, see discussion under the latter. (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. 59. | ||||
Parent taxa | Sphagnaceae > Sphagnum > sect. Acutifolia | Sphagnaceae > Sphagnum > sect. Squarrosa | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. squarrosum var. teres, S. teres var. squarrosulum | |||||
Name authority | Wilson & Hooker: in J. D. Hooker, Fl. Antarct., 398. (1847) | Ångström: in C. J. Hartman, Handb. Skand Fl. ed. 8, 417. (1861) | ||||
Web links |