Sphagnum warnstorfii |
Sphagnum fimbriatum |
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Warnstorf's peat-moss, Warnstorf's sphagnum |
fringe bogmoss, fringe peat-moss, sphagnum |
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Habit | Plants small or less frequently moderate-sized, slender, capitulum flat-topped and stellate; green or dark purplish red and green, rarely green throughout, often with a distinctive bluish cast when dry. | 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 triangular-lingulate to lingulate, 1.1–1.4 mm, apex broad-rounded to narrowly truncate, border very broad at base (more than 0.3 width); hyaline cells efibrillose, rhombic, mostly 1-septate but can be non-septate. |
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 | long and tapering, usually strongly 5-ranked. |
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-lanceolate, 0.9–1.4 mm, concave, straight, apex involute; hyaline cells on convex surface with very small ringed pores (less than 0.25 cell width) along commissures near apex, changing abruptly to large elliptical pores (0.4 cell width or more) basally, concave surface with large round pores in proximal margins and leaf base. |
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 | dioicous. |
often monoicous. |
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Spores | 17–26 µm, finely papillose on both surfaces; proximal laesura less than 0.5 spore radius. |
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 pendent branches. |
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Sphagnum warnstorfii |
Sphagnum fimbriatum |
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Phenology | Capsules mature late summer to early autumn. | |||||
Habitat | Minerotropic, hygrophytic, frequent in medium to rich fens | |||||
Elevation | low to moderate elevations | |||||
Distribution |
AK; CO; CT; IA; ID; IN; MA; MD; ME; MI; MN; MT; NC; NH; NJ; NY; OH; PA; RI; SD; UT; VT; WA; WI; WY; AB; BC; MB; NB; NF; NS; NT; NU; ON; QC; SK; YT; Greenland; Eurasia
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North America; South America; Eurasia; Pacific Islands (New Zealand)
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Discussion | Sporophytes are uncommon in Sphagnum warnstorfii. This is one of the most minerotrophic species of the flora, is hygrophytic, and has a very broad niche. The most commonly associated vascular plants are Thuja occidentalis, Abies balsamea, and Picea rubens. Bryophytes typically associated with it are S. centrale, S. squarrosum, S. teres, Calliergonella cuspidata, and Campylium stellatum. This species is perhaps most similar to S. bartlettianum, with which it has small range overlap. Sphagnum warnstorfii has a shorter and less sharply pointed stem leaf and the red color with a characteristic bluish caste compared to the crimson red of S. bartlettianum. See also discussion under 81. S. russowii and 86. S. talbotianum. (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. 101. | FNA vol. 27, p. 92. | ||||
Parent taxa | Sphagnaceae > Sphagnum > sect. Acutifolia | Sphagnaceae > Sphagnum > sect. Acutifolia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | S. warnstorfianum | |||||
Name authority | Russow: Sitzungs.-Ber. Naturf.-Ges. Univ. Dorpat 8: 315. (1888) | Wilson & Hooker: in J. D. Hooker, Fl. Antarct., 398. (1847) | ||||
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