Sphagnum imbricatum |
Sphagnum fimbriatum |
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fringe bogmoss, fringe peat-moss, sphagnum |
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Habit | Plants moderate-sized, weak-stemmed, lax; yellowish to golden brown; forming loose carpets; branches loosely imbricate. | 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. | ||||
Stem(s) | leaves short-rectangular, 0.8–1.1 mm, hyaline cells mostly non-septate and absent comb-fibrils. |
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. |
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Branches | not 5-ranked, quite terete, long, and slender Branch fascicles with 1– 2 spreading and 1–2 pendent branches. |
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Branch leaves | ovate to ovate-elliptic, 1.4–1.8 mm; hyaline cells on convex surface with numerous pores along the commissures; comb-lamellae obvious only in proximal 1/2 of leaf; chlorophyllous cells broadly triangular in transverse section and well-enclosed on the convex surface. |
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. |
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Sexual condition | dioecious. |
often monoicous. |
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Spores | (22) 24–27(–28) µm, surface granulate. |
20–27 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius. |
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Branch | fascicles with 2 spreading and 1–2 hanging branches.; branch stems with hyaline cells non-ornamented, no or weak funnel-like projections on the end walls of cortical cells, cortical cell walls usually with large round pores. |
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Sphagnum imbricatum |
Sphagnum fimbriatum |
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Habitat | Ecology poorly known | |||||
Elevation | moderate elevations | |||||
Distribution |
AK |
North America; South America; Eurasia; Pacific Islands (New Zealand)
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Discussion | K. I. Flatberg (1984) considered Sphagnum imbricatum to be East Asian in distribution but a recent collection in Selawik National Wildlife Refuge places it in the North American flora. It will undoubtedly be found elsewhere. Sphagnum imbricatum is closest in morphological detail to S. steerei, but the latter is a very dark colored and densely branched species whereas S. imbricatum is quite light in color and not particularly dense. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 27, p. 52. | FNA vol. 27, p. 92. | ||||
Parent taxa | ||||||
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Name authority | Russow: Beitr. Torfm., 99. (1865) | Wilson & Hooker: in J. D. Hooker, Fl. Antarct., 398. (1847) | ||||
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