View source for Diphasiastrum sitchense

{{Treatment/ID
|accepted_name=Diphasiastrum sitchense
|accepted_authority=(Ruprecht) Holub
|publications={{Treatment/Publication
|title=Preslia
|place=47: 108. 1975
|year=1975
}}
|common_names=Sitka club-moss;lycopode de Sitka
|basionyms={{Treatment/ID/Synonym
|name=Lycopodium sitchense
|authority=Ruprecht
}}
|synonyms=
|hierarchy=Lycopodiaceae;Diphasiastrum;Diphasiastrum sitchense
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Lycopodiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Diphasiastrum]]</div><div class="higher-taxon"><small>species</small>[[Diphasiastrum sitchense]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Horizontal </b>stems on substrate surface or shallowly buried, 1–2.7 mm wide; leaves appressed, broadly lanceolate, 1.8–3.2 × 0.5–1 mm, apex blunt. <b>Upright</b> shoots clustered and branching mostly at base, 5.5–17.5 cm; leaves appressed, broadly lanceolate, 1.8–3.2 × 0.5–1 mm, apex acuminate. <b>Branchlets</b> dark green, somewhat shiny, round in cross section, 1.7–2.5 mm wide, annual bud constrictions inconspicuous. <b>Leaves</b> on branchlets monomorphic, 5-ranked, not overlapping, appressed to spreading-ascending, incurved, free portion of blades 3.4–5.6 × 0.4–0.9 mm, widest at middle, apex sharply pointed. <b>Peduncles</b> absent or rarely 1 cm. <b>Stalks</b> absent. <b>Strobili</b> solitary on upright shoots, 4.5–38 × 3–5 mm, gradually narrowing to rounded tip. <b>Sporophylls</b> deltate, 1.8–3.6 × 1.7–2.8 mm; apex rounded. <b>2n</b> = 46.</span><!--

-->{{Treatment/Body
|habitat=Alpine meadows, open rocky barrens, conifer woods
|elevation=200–2000 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Idaho;Maine;Mont.;N.H.;N.Y.;Oreg.;Vt.;Wash.;Asia in Kamchatka;Japan.
|discussion=<p>The mature shoots in <i>Diphasiastrum sitchense</i> resemble the juvenile phases of the other species. The unique, round, 5-ranked leaves may represent an early developmental state.</p><!--
--><p>The hybrid <i>Diphasiastrum alpinum</i> X sitchense is very rare. It is known from Greenland, British Columbia, Newfoundland, Montana, Oregon, and Washington. Specimens of <i>D. sitchense</i> from Greenland, Newfoundland, and Washington cited by J. H. Wilce (1965) are actually this hybrid.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Diphasiastrum sitchense
|author=
|authority=(Ruprecht) Holub
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Lycopodium sitchense
|family=Lycopodiaceae
|habitat=Alpine meadows, open rocky barrens, conifer woods
|elevation=200–2000 m
|distribution=Greenland;St. Pierre and Miquelon;Alta.;B.C.;Man.;N.B.;Nfld.;N.S.;Ont.;P.E.I.;Que.;Sask.;Yukon;Alaska;Idaho;Maine;Mont.;N.H.;N.Y.;Oreg.;Vt.;Wash.;Asia in Kamchatka;Japan.
|reference=None
|publication title=Preslia
|publication year=1975
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_277.xml
|genus=Diphasiastrum
|species=Diphasiastrum sitchense
}}<!--

-->[[Category:Treatment]][[Category:Diphasiastrum]]