Difference between revisions of "Sphagnum cyclophyllum"
in A. Gray, Manual ed. 2, 611. 1856,.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 21: | Line 21: | ||
|elevation=low to moderate elevations | |elevation=low to moderate elevations | ||
|distribution=N.S.;Ala.;Fla.;Ga.;La.;Miss.;N.J.;N.C.;S.C.;Tenn.;Tex.;Va.;South America. | |distribution=N.S.;Ala.;Fla.;Ga.;La.;Miss.;N.J.;N.C.;S.C.;Tenn.;Tex.;Va.;South America. | ||
| − | |discussion=<p>Sporophytes are quite rare in Sphagnum cyclophyllum, which grows associated with S. pylaesii, S. perichaetiale, S. portoricense, and S. lescurii. Sphagnum pylaesii is the only other North American Sphagnum that regularly grows unbranched. The latter species not only lacks the typical sect. Subsecunda branch leaf porosity of S. cyclophyllum but is also much more slender. Sphagnum pylaesii is also much more likely to occur submersed, where it occurs in branched forms, something S. cyclophyllum rarely does. See also discussion under 57. S. microcarpum and 61. S. platyphyllum.</p> | + | |discussion=<p>Sporophytes are quite rare in <i>Sphagnum cyclophyllum</i>, which grows associated with <i>S. pylaesii</i>, <i>S. perichaetiale</i>, <i>S. portoricense</i>, and <i>S. lescurii</i>. <i>Sphagnum pylaesii</i> is the only other North American <i>Sphagnum</i> that regularly grows unbranched. The latter species not only lacks the typical sect. Subsecunda branch leaf porosity of <i>S. cyclophyllum</i> but is also much more slender. <i>Sphagnum pylaesii</i> is also much more likely to occur submersed, where it occurs in branched forms, something <i>S. cyclophyllum</i> rarely does. See also discussion under 57. <i>S. microcarpum</i> and 61. <i>S. platyphyllum</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 44: | Line 44: | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V27/V27_68.xml |
|genus=Sphagnum | |genus=Sphagnum | ||
|section=Sphagnum sect. Subsecunda | |section=Sphagnum sect. Subsecunda | ||
Revision as of 16:56, 18 September 2019
Plants low, erect or procumbent, loosely tufted; green or more frequently yellowish, orangish brown-red, reddish brown or dark red; capitulum not developed. Stems brown to black; superficial cortex of 1 (–2) layers of enlarged, thin-walled cells. Stem leaves broadly ovate, 3.5–4 mm, apex rounded and indistinctly toothed; hyaline cells on convex surface with 10–20 small (2.5–7.5 µm) round pores approximately 1/6 the diameter of the hyaline cells along the commissures, cells on concave surface uniporose in distal end or aporose, sometimes one or a few pores are scattered over the surface of the cells. Branches few, single and short or more commonly none. Branch fascicles, if any, usually only 1 single branch. Branch leaves if any, are usually slightly smaller, 2–3 mm, but otherwise identical to the stem leaves. Sexual condition dioicous. Capsule immersed in perichaetial leaves, pseudopodium extremely short, without pseudostomata. Spores 25–40 µm; coarsely papillose on both surfaces; proximal laesura more than 0.5 the length of the spore
Habitat: In open grassy savannas, pine barrens, ditches, bare sand in places that are usually submerged for a portion of the year
Elevation: low to moderate elevations
Distribution
N.S., Ala., Fla., Ga., La., Miss., N.J., N.C., S.C., Tenn., Tex., Va., South America.
Discussion
Sporophytes are quite rare in Sphagnum cyclophyllum, which grows associated with S. pylaesii, S. perichaetiale, S. portoricense, and S. lescurii. Sphagnum pylaesii is the only other North American Sphagnum that regularly grows unbranched. The latter species not only lacks the typical sect. Subsecunda branch leaf porosity of S. cyclophyllum but is also much more slender. Sphagnum pylaesii is also much more likely to occur submersed, where it occurs in branched forms, something S. cyclophyllum rarely does. See also discussion under 57. S. microcarpum and 61. S. platyphyllum.
Selected References
None.