View source for Sphagnum perichaetiale

{{Treatment/ID
|accepted_name=Sphagnum perichaetiale
|accepted_authority=Hampe
|publications={{Treatment/Publication
|title=Linnaea
|place=20: 66. 1847,
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Sphagnum brevicaule
|authority=Warnstorf
|rank=species
}} {{Treatment/ID/Synonym
|name=Sphagnum cymbifolium var. ludovicianum
|authority=Cardot
|rank=variety
}} {{Treatment/ID/Synonym
|name=Sphagnum harperi
|authority=(Cardot) Warnstorf
|rank=species
}} {{Treatment/ID/Synonym
|name=Sphagnum ludovicianum
|authority=
|rank=species
}}
|hierarchy=Sphagnaceae;Sphagnum;Sphagnum sect. Sphagnum;Sphagnum perichaetiale
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Sphagnaceae]]</div><div class="higher-taxon"><small>genus</small>[[Sphagnum]]</div><div class="higher-taxon"><small>section</small>[[Sphagnum sect. Sphagnum]]</div><div class="higher-taxon"><small>species</small>[[Sphagnum perichaetiale]]</div></div>
|volume=Volume 27
|mention_page=page 49, 80
|treatment_page=page 54
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>± moderate-sized, compact and stiff-stemmed; forming dense to somewhat loose low cushions in often seasonally dry depressions. <b>Stems</b> brown; superficial cortical layer with spiral reinforcing fibrils faint to obvious, 1–3 pores per cell, comb-fibrils lacking on interior wall. <b>Stem</b> leaves to 1.1 × 0.7 mm, commonly hemiisophyllous; hyaline cells non-ornamented, mostly 1–2-septate. <b>Branches</b> short and blunt at distal end, leaves loosely spreading. <b>Branch</b> fascicles with 2 spreading and 1–2 pendent branches. <b>Branch</b> stems with hyaline cells non-ornamented, no or weak funnel-like projection of end walls of cortical cells, cortical cells with one large pore per cell on superficial wall. <b>Branch</b> leaves ovate, to 2.2 × 1.1 mm; ovate, hyaline cells non-ornamented, on proximal half of convex surface with small ringed pores or pseudopores in groups of three where the corners join and pseudopores along the commissures; chlorophyllous cells narrowly rectangular, lenticular to narrowly trapezoidal in transverse section; exposed equally on both surfaces or more broadly on concave surface; end walls not thickened. <b>Sexual</b> condition dioicous. <b>Capsule</b> with numerous pseudostomata. <b>Spores</b> 25–39 µm; surface smooth to irregularly and finely papillose; indistinct Y-mark on distal surface; proximal laesura more than 0.6 spore radius.</span><!--

-->{{Treatment/Body
|phenology=Capsules common, mature late spring to early summer.
|habitat=Mostly ruderal, wet depressions in sandy substrates, often in areas recently burned, also low to moderate-sized hummocks in Chamaecyparis swamps
|elevation=low to high elevations
|distribution=Ala.;Del.;Fla.;Ga.;La.;Md.;Miss.;N.J.;N.C.;S.C.;Tex.;Va.;South America;se Asia;s Africa;Pacific Islands (New Zealand).
|discussion=<p>The compact growth form in thin but dense mats and occurrence in often dessication-prone sites distinguishes <i>Sphagnum perichaetiale</i> from any other species of sect. <i>Sphagnum</i>. The often quite stiffly spreading branch leaves give it a strong resemblance to <i>S. compactum</i>, but the latter’s small triangular stem leaves will readily distinguish that species. The branch leaf hyaline cells of <i>S. perichaetiale</i> have only a few pores on their convex surface, and they are typically small, thickened, and grouped in 3s where the cell corners meet. Similar species in sect. <i>Sphagnum</i> have more pores along the commissures, and they are more elliptical and not thickened. The often hemiisophyllous stem leaves are also diagnostic of <i>S. perichaetiale</i> within the section.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Sphagnum perichaetiale
|authority=Hampe
|rank=species
|parent rank=section
|synonyms=Sphagnum brevicaule;Sphagnum cymbifolium var. ludovicianum;Sphagnum harperi;Sphagnum ludovicianum
|basionyms=
|family=Sphagnaceae
|phenology=Capsules common, mature late spring to early summer.
|habitat=Mostly ruderal, wet depressions in sandy substrates, often in areas recently burned, also low to moderate-sized hummocks in Chamaecyparis swamps
|elevation=low to high elevations
|distribution=Ala.;Del.;Fla.;Ga.;La.;Md.;Miss.;N.J.;N.C.;S.C.;Tex.;Va.;South America;se Asia;s Africa;Pacific Islands (New Zealand).
|reference=None
|publication title=Linnaea
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V27/V27_17.xml
|genus=Sphagnum
|section=Sphagnum sect. Sphagnum
|species=Sphagnum perichaetiale
}}<!--

-->[[Category:Treatment]][[Category:Sphagnum sect. Sphagnum]]