Sphagnum wulfianum |
Sphagnum palustre |
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wulf's sphagnum |
blunt-leaf bogmoss, blunt-leaf peat-moss, prairie sphagnum |
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Habit | Plants moderate-sized to robust, strong-stemmed, lax to somewhat compact, capitulum somewhat flattened to more typically compact and rounded; green to golden brown to pale brown with often a pinkish tinge; carpets to more or less compact, low to moderate sized hummocks. | |
Stem(s) | leaves to 1.7 × 1 mm, occasionally longer; rarely hemiisophyllous; hyaline cells non-ornamented, nonseptate. |
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Branches | long and tapering, leaves ± imbricate to spreading in shade forms. |
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Branch leaves | with chlorophyllous cells often with faint papillae on interior walls. |
broadly ovate, 2.2 × 1.3 mm, hyaline cells non-ornamented, convex surface with elliptic pores along the commissures, chlorophyllous cells isosceles-triangular to ovate-triangular in transverse section and just enclosed to just exposed on the convex surface; end wall not thickened. |
Sexual condition | dioicous. |
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Capsule | with numerous pseudostomata. |
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Spores | 24–33 µm, surface finely papillose to smooth, distal surface with distinct bifurcated Y-mark sculpture; proximal laesura more than 0.6 spore radius. |
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Branch | fascicles with 2 spreading and 2 pendent branches.; branch stems with hyaline cells non-ornamented; no or weak funnel-like projections on the interior end walls, often with 1 large pore per cell on superficial cell walls. |
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Sphagnum wulfianum |
Sphagnum palustre |
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Phenology | Capsules mature mid to late summer. | |
Habitat | Coniferous forests, and occasionally in Alnus or Salix karrs | Widespread in forested fens and poor to rich sedge fens |
Elevation | low to moderate elevations | low to moderate elevations |
Distribution |
CT; IL; IN; MA; ME; MI; MN; NH; NY; OH; PA; RI; VT; WI; AB; BC; MB; NB; NF; NS; ON; QC; Greenland; Eurasia |
AL; AR; CA; CT; DE; FL; GA; IA; IL; IN; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NH; NJ; NY; OH; OK; OR; PA; SC; TN; TX; VA; VT; WA; WI; WV; BC; NB; NF; NS; ON; PE; QC; Europe; Pacific Islands
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Discussion | The sporophytes of Sphagnum wulfianum are moderately common. This is the most dry-growing species in North America, typically growing in association with Sphagnum centrale, S. girgensohnii, S. russowii, and S. squarrosum. It is easily recognized as the only species that regularly has more than six branches per fascicle. The Lycopodium clavatum-like growth habit and conifer swamp habitat along with the strongly 5-ranked branch leaves make it even easier to recognize in the field. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Sphagnum palustre may occur elsewhere than listed above, but the taxonomy is unclear. In some open-grown situations, it may have a reddish tinge and seem similar to S. magellanicum, but this is a pinkish red color rather than the purplish red of the latter. See discussions under 5. S. henryense and 9. S. papillosum for distinction from those species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 27, p. 85. | FNA vol. 27, p. 53. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | S. cymbifolium | |
Name authority | Girgensohn: Arch. Naturk. Liv- Ehst- Kurlands, Ser. 2, Biol. Naturk. 2: 173. (1860) | Linnaeus: Sp. Pl. 2: 1106. (1753) |
Web links |