View source for Pellaea cordifolia

{{Treatment/ID
|accepted_name=Pellaea cordifolia
|accepted_authority=(Sessé & Mociño) A. R. Smith
|publications={{Treatment/Publication
|title=Amer. Fern J.
|place=70: 26. 1980
|year=1980
}}
|basionyms={{Treatment/ID/Basionym
|name=Adiantum cordifolium
|authority=Sessé & Mociño
|rank=species
|publication_title=Naturaleza (Mexico City), ser.
|publication_place=2, 1(App.): 182. 1890
}}
|synonyms={{Treatment/ID/Synonym
|name=Pellaea cardiomorpha
|authority=Weatherby
|rank=species
}} {{Treatment/ID/Synonym
|name=Pellaea sagittata var. cordata
|authority=(Cavanilles) A. F. Tryon
|rank=variety
}}
|hierarchy=Pteridaceae;Pellaea;Pellaea cordifolia
|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 cordifolia]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>compact, ascending, stout, 6–10 mm diam.; scales uniformly orange-brown and thin, lanceolate to ovate, largest scales 0.3–1 mm wide, margins dentate. <b>Leaves</b> somewhat dimorphic, sterile leaves shorter than fertile leaves, clustered on stem, 15–50 cm; croziers not conspicuously pubescent, densely scaly. <b>Petiole</b> straw-colored, tan, or gray, not lustrous, rounded or slightly flattened adaxially, without prominent articulation lines. <b>Blade</b> ovate-deltate, 2-pinnate proximally, 5–20 cm wide; rachis tan throughout, straight to slightly flexuous, rounded or flattened adaxially, glabrous. <b>Pinnae</b> perpendicular to rachis or slightly ascending, not decurrent on rachis, usually with 3–15 ultimate segments; costae straight to slightly flexuous, 25–100 mm, longer than ultimate segments. <b>Ultimate</b> segments round-cordate to deltate-cordate, 5–15 mm, herbaceous to leathery, glabrous or puberulent; margins recurved on fertile segments, covering less than 1/2 abaxial surface, borders whitish, crenulate; apex rounded or retuse. <b>Veins</b> of ultimate segments usually evident. <b>Sporangia</b> short-stalked, containing 64 spores, not intermixed with farina-producing glands. <b>2n</b> = 58.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Rocky slopes and ledges, usually on volcanic substrates
|elevation=1000–2500 m
|distribution=Tex.;Mexico.
|discussion=<p>The diploid <i>Pellaea cordifolia</i> has often been treated as a variety of the Central American and South American apogamous triploid, <i>P. sagittata</i>. The two taxa are distinguished by a number of qualitative morphologic features (A. R. Smith 1980), and it seems unlikely that they represent cytotypes of a single species. A. F. Tryon (1957) suggested that <i>P. sagittata</i> may have originated through hybridization between <i>P. ovata</i> and <i>P. cordifolia</i> (as <i>P. sagittata</i> <i></i>var.<i> cordata</i>).</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Pellaea cordifolia
|authority=(Sessé & Mociño) A. R. Smith
|rank=species
|parent rank=genus
|synonyms=Pellaea cardiomorpha;Pellaea sagittata var. cordata
|basionyms=Adiantum cordifolium
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Rocky slopes and ledges, usually on volcanic substrates
|elevation=1000–2500 m
|distribution=Tex.;Mexico.
|reference=None
|publication title=Amer. Fern J.
|publication year=1980
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V2/V2_183.xml
|genus=Pellaea
|species=Pellaea cordifolia
}}<!--

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