View source for Pellaea atropurpurea

{{Treatment/ID
|accepted_name=Pellaea atropurpurea
|accepted_authority=(Linnaeus) Link
|publications={{Treatment/Publication
|title=Fil. Spec.
|place=59. 1841
|year=1841
}}
|common_names=Pelléade à stipe pourpre
|basionyms={{Treatment/ID/Basionym
|name=Pteris atropurpurea
|authority=Linnaeus
|publication_title=Sp. Pl.
|publication_place=2: 1076. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Pellaea atropurpurea var. cristata
|authority=Trelease
}}
|hierarchy=Pteridaceae;Pellaea;Pellaea atropurpurea
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Pellaea]]</div><div class="higher-taxon"><small>species</small>[[Pellaea atropurpurea]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>compact, ascending, stout, 5–10 mm diam.; scales uniformly reddish brown (or tan), linear-subulate, 0.1–0.3 mm wide, thin, margins entire to denticulate. <b>Leaves</b> somewhat dimorphic, sterile leaves shorter and less divided than fertile leaves, clustered on stems, 5–50 cm; croziers villous. <b>Petiole</b> reddish purple to nearly black, lustrous, rounded adaxially, without prominent articulation lines. <b>Blade</b> elongate-deltate, usually 2-pinnate proximally, 2–18 cm wide; rachis reddish purple throughout, straight, rounded adaxially, densely pubescent adaxially with short, curly, appressed hairs. <b>Pinnae</b> perpendicular to rachis or ascending, not decurrent on rachis, usually with 3–15 ultimate segments; costae straight, 10–100 mm, often longer than ultimate segments. <b>Ultimate</b> segments linear-oblong, 10–75 mm, leathery, sparsely villous abaxially near midrib; margins weakly recurved to plane on fertile segments, usually covering less than 1/2 abaxial surface, borders whitish, crenulate; apex obtuse to slightly mucronate. <b>Veins</b> of ultimate segments obscure. <b>Sporangia</b> long-stalked, containing 32 spores, not intermixed with farina-producing glands. n = 2n = 87, apogamous.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Calcareous cliffs and rocky slopes, usually on limestone
|elevation=100–2500 m
|distribution=Ont.;Que.;Ala.;Ariz.;Ark.;Colo.;Conn.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;Nev.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;W.Va.;Wis.;Wyo.;Mexico;Central America in Guatemala.
|discussion=<p>Contrary to D. B. Lellinger's (1985) hypothesis, isozyme data indicate that neither <i>Pellaea glabella</i> nor <i>P. ternifolia</i> was involved in the origin of this apogamous triploid. Instead, it appears that <i>P. atropurpurea</i> is an autopolyploid derivative of a single diploid taxon that has not yet been located. A thorough survey of spore number per sporangium in this species should be undertaken to determine whether the diploid progenitor is still extant. Collections from western Canada identified as <i>P. atropurpurea</i> actually represent <i>P. gastonyi</i>, an apogamous tetraploid produced by hybridization between <i>P. atropurpurea</i> and diploid populations of <i>P. glabella</i>. <i>Pellaea atropurpurea</i> has also hybridized with <i>P. wrightiana</i>; the hybrid is a rare apogamous pentaploid known only from western Oklahoma. <i>Pellaea lyngholmii</i> is the apogamous tetraploid hybrid between <i>P. atropurpurea</i> and <i>P. truncata</i>. <i>Pellaea atropurpurea</i> is distinguished from all these hybrids by having rachises that are densely pubescent adaxially, larger ultimate segments, and spores averaging less than 62 µm in diameter.</p>
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-->{{#Taxon:
name=Pellaea atropurpurea
|author=
|authority=(Linnaeus) Link
|rank=species
|parent rank=genus
|synonyms=Pellaea atropurpurea var. cristata
|basionyms=Pteris atropurpurea
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Calcareous cliffs and rocky slopes, usually on limestone
|elevation=100–2500 m
|distribution=Ont.;Que.;Ala.;Ariz.;Ark.;Colo.;Conn.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Nebr.;Nev.;N.J.;N.Mex.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;W.Va.;Wis.;Wyo.;Mexico;Central America in Guatemala.
|reference=None
|publication title=Fil. Spec.
|publication year=1841
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V2/V2_432.xml
|genus=Pellaea
|species=Pellaea atropurpurea
}}<!--

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