Difference between revisions of "Sphagnum lenense"

Pohle

Trudy Glavn. Bot. Sada 33: 14. 1915,.

Basionym: Sphagnum lindbergii var. microphyllum Warnstorf
Treatment appears in FNA Volume 27. Treatment on page 70. Mentioned on page 62.
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|elevation=low to moderate elevations
 
|elevation=low to moderate elevations
 
|distribution=Greenland;Nfld. and Labr. (Nfld.);N.W.T.;Nunavut;Que.;Yukon;Alaska;Eurasia.
 
|distribution=Greenland;Nfld. and Labr. (Nfld.);N.W.T.;Nunavut;Que.;Yukon;Alaska;Eurasia.
|discussion=<p>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.</p>
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|discussion=<p>Sporophytes are rare in <i>Sphagnum lenense</i>. This species is easily distinguished from the similar <i>S. lindbergii</i> by its compact growth form and reddish brown color. <i>Sphagnum lenense</i> also is a hummock former in the tundra whereas <i>S. lindbergii</i> forms carpets.</p>
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V27/V27_46.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V27/V27_46.xml
 
|genus=Sphagnum
 
|genus=Sphagnum
 
|section=Sphagnum sect. Cuspidata
 
|section=Sphagnum sect. Cuspidata

Revision as of 16:55, 18 September 2019

Plants compact, short-branched and small; strongly reddish to golden brown, glossy when dry; flat-topped capitulum with moderately differentiated terminal bud. Stems dark brown; superficial cortex of 3–4 layers of enlarged thin-walled cells. Stem 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 strongly 5-ranked, short and blunt, not much elongated at distal end. Branch fascicles with 2 spreading and 2–3 pendent branches. Branch stems green, with cortex enlarged with retort cells. Branch leaves 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 unknown. Spores not seen.


Habitat: 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

Greenland, Nfld. and Labr. (Nfld.), N.W.T., Nunavut, Que., Yukon, Alaska, Eurasia.

Discussion

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.

Selected References

None.

Lower Taxa

None.
... more about "Sphagnum lenense"
Cyrus B. McQueen† +  and Richard E. Andrus +
Sphagnum lindbergii var. microphyllum +
Greenland +, Nfld. and Labr. (Nfld.) +, N.W.T. +, Nunavut +, Que. +, Yukon +, Alaska +  and Eurasia. +
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 +
Trudy Glavn. Bot. Sada +
Sphagnum sect. Mollusca +
Sphagnum lenense +
Sphagnum sect. Cuspidata +
species +