View source for Polypodium sibiricum

{{Treatment/ID
|accepted_name=Polypodium sibiricum
|accepted_authority=Siplivinskij
|publications={{Treatment/Publication
|title=Novosti Sist. Vyssh. Rast.
|place=11: 329. 1974
|year=1974
}}
|common_names=Polypode de Sibérie
|basionyms=
|synonyms=
|hierarchy=Polypodiaceae;Polypodium;Polypodium sibiricum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Polypodiaceae]]</div><div class="higher-taxon"><small>genus</small>[[Polypodium]]</div><div class="higher-taxon"><small>species</small>[[Polypodium sibiricum]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>often whitish pruinose, slender, to 6 mm diam., acrid-tasting; scales concolored to weakly bicolored, uniformly dark brown, often lighter near base, lanceolate, contorted distally, margins denticulate. <b>Leaves</b> to 25 cm. <b>Petiole</b> slender, to 1 mm diam. <b>Blade</b> oblong-linear, pinnatifid, usually widest at or near middle, to 4 cm wide, somewhat leathery; rachis sparsely scaly to glabrescent abaxially, glabrous adaxially; scales lanceolate-ovate, usually more than 6 cells wide. <b>Segments</b> oblong, less than 7 mm wide; margins entire to crenulate; apex rounded to broadly acute; midrib glabrous adaxially. <b>Venation</b> free. <b>Sori</b> midway between margin and midrib to nearly marginal, less than 3 mm diam., circular when immature. <b>Sporangiasters</b> present, less than 40 per sorus, heads normally without glandular hairs. <b>Spores</b> less than 52 µm, tuberculate with tubercles, surface projections more than 3 µm tall. <b>2n</b> = 74.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–early fall.
|habitat=Cracks and ledges on rock outcrops, on a variety of substrates including granite and dolomite
|elevation=100–1000 m
|distribution=Greenland;Alta.;B.C.;Man.;N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;n Asia.
|discussion=<p>This boreal diploid has traditionally been identified as <i>Polypodium virginianum</i> (T. M. C. Taylor 1970; F. A. Lang 1971), but recent investigations indicate that it is conspecific with the eastern Eurasian species <i>P. sibiricum</i> (C. H. Haufler and M. D. Windham 1991). The sporangiasters of <i>P. sibiricum</i> normally lack glands, but some collections have sporangiasters with a few glandular hairs. Although such collections could be misidentified, the spores of <i>P. sibiricum</i> are less than 52 µm and clearly distinguish it from <i>P. virginianum</i>, <i>P. amorphum</i>, and <i>P. saximontanum</i>. Hybridization occurs between <i>P. sibiricum</i> and <i>P. virginianum</i> where these species overlap in Canada, forming triploid individuals with misshapen spores (C. H. Haufler and Wang Z. R. 1991).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Polypodium sibiricum
|authority=Siplivinskij
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Polypodiaceae
|phenology=Sporulating summer–early fall.
|habitat=Cracks and ledges on rock outcrops, on a variety of substrates including granite and dolomite
|elevation=100–1000 m
|distribution=Greenland;Alta.;B.C.;Man.;N.W.T.;Ont.;Que.;Sask.;Yukon;Alaska;n Asia.
|reference=None
|publication title=Novosti Sist. Vyssh. Rast.
|publication year=1974
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V2/V2_116.xml
|genus=Polypodium
|species=Polypodium sibiricum
}}<!--

-->[[Category:Treatment]][[Category:Polypodium]]