Sphagnum perfoliatum |
Sphagnum lenense |
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sphagnum |
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Habit | Plants moderate-sized, upright but weak-stemmed; golden brown to dark brown; capitulum distinct and often with strongly curved branches. | Plants compact, short-branched and small; strongly reddish to golden brown, glossy when dry; flat-topped capitulum with moderately differentiated terminal bud. |
Stem(s) | leaves triangular-lingulate to lingulate; 0.8–1.2 mm; apex rounded and sometimes erose; hyaline cells non-septate or sometimes septate, usually fibrillose in distal 1/2 of leaf, convex surface with very small pores (ca. 2 µm) along commisures and free, concave surface with fewer commissural pores. |
leaves lingulate,small, equal to or less than 0.8 mm, appressed to stem; apex with strong lacerate split in the middle; hyaline cells efibrillose, aporose, and nonseptate. |
Branches | turgid and often strongly curved. |
strongly 5-ranked, short and blunt, not much elongated at distal end. |
Branch leaves | ovate-lanceolate; 1.4 or more mm; mostly subsecund; hyaline cells on convex surface with numerous small (2 µm or more) pores along the commissures and sometimes free, concave surface with no pores or fewer small pores along the commissures. |
ovate; usually less than 1.5 mm; stiff and slightly reflexed, straight to slightly subsecund; margins entire; hyaline cells moderately long and narrow (6–8:1), convex surface with one small round pore per cell at apex and numerous pseudopores on the margin, concave surface with large round wall thinnings in the cell angles and ends; chlorophyllous cells triangular in transverse section, with apex reaching concave surface. |
Sexual condition | not known. |
unknown. |
Capsule | not seen. |
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Spores | not seen. |
not seen. |
Branch | fascicles with 2 spreading and 2 pendent branches. |
fascicles with 2 spreading and 2–3 pendent branches.; branch stems green, with cortex enlarged with retort cells. |
Sphagnum perfoliatum |
Sphagnum lenense |
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Habitat | Low to moderate elevations | Common forming hummocks and carpets in a variety of weakly minerotrophic to ombrotrophic mires including Eriophorum tussock fens, dwarf shrub fens, polygon peatlands, string mires and raised bogs |
Elevation | low to moderate elevations | |
Distribution |
AK; NT; Asia |
AK; NF; NT; NU; QC; YT; Greenland; Eurasia |
Discussion | For ecology, see discussion under 59. Sphagnum orientale. Sporophytes of Sphagnum perfoliatum are apparently rare. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Sporophytes are rare in Sphagnum lenense. This species is easily distinguished from the similar S. lindbergii by its compact growth form and reddish brown color. Sphagnum lenense also is a hummock former in the tundra whereas S. lindbergii forms carpets. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 27, p. 83. | FNA vol. 27, p. 70. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | S. lindbergii var. microphyllum | |
Name authority | L. I. Savicz: Bot. Mater. Otd. Sporov. Rast. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 7: 208. (1951) | Pohle: Trudy Glavn. Bot. Sada 33: 14. (1915) |
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