View source for Pellaea intermedia

{{Treatment/ID
|accepted_name=Pellaea intermedia
|accepted_authority=Mettenius ex Kuhn
|publications={{Treatment/Publication
|title=Linnaea
|place=38: 84. 1869
|year=1869
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Pellaea intermedia var. pubescens
|authority=Mettenius ex Kuhn
}}
|hierarchy=Pteridaceae;Pellaea;Pellaea intermedia
|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 intermedia]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>creeping, horizontal, slender, 2–4 mm diam.; scales mostly bicolored, narrowly lanceolate, largest scales 0.3–0.8 mm wide, centers black, thick, margins brown, thin, irregularly dentate. <b>Leaves</b> monomorphic, widely scattered along stem, 12–50 cm; croziers pubescent and bearing a few scales. <b>Petiole</b> straw-colored, tan, or gray, not lustrous, rounded or slightly flattened adaxially, without prominent articulation lines. <b>Blade</b> ovate to elongate-deltate, usually 2-pinnate proximally, 4–20 cm wide; rachis tan throughout, straight to slightly flexuous, rounded or flattened adaxially, ± pubescent. <b>Pinnae</b> perpendicular to rachis or slightly ascending, not decurrent on rachis, usually with 7–21 ultimate segments; costae straight to slightly flexuous, 20–100 mm, longer than ultimate segments. <b>Ultimate</b> segments ovate to elliptic, 5–15 mm, leathery, glabrous or usually puberulent abaxially; margins recurved on fertile segments, usually covering less than 1/2 abaxial surface, borders whitish, nearly entire; apex obtuse to slightly mucronate. <b>Veins</b> of ultimate segments obscure. <b>Sporangia</b> short-stalked, containing 32 spores, not intermixed with farina-producing glands. n = 2n = 87, 116, apogamous.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Rocky slopes and ledges, on a variety of substrates, including limestone and granite
|elevation=300–2400 m
|distribution=Ariz.;N.Mex.;Tex.;n Mexico.
|discussion=<p>Plants of <i>Pellaea intermedia</i> in the flora are apogamous triploids and tetraploids; a sexual diploid cytotype has been found near Saltillo, Mexico (A. F. Tryon 1968). Given the high degree of morphologic similarity among the three cytotypes, the North American polyploids probably were derived from the Mexican diploid through autopolyploidy.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pellaea intermedia
|author=
|authority=Mettenius ex Kuhn
|rank=species
|parent rank=genus
|synonyms=Pellaea intermedia var. pubescens
|basionyms=
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Rocky slopes and ledges, on a variety of substrates, including limestone and granite
|elevation=300–2400 m
|distribution=Ariz.;N.Mex.;Tex.;n Mexico.
|reference=None
|publication title=Linnaea
|publication year=1869
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V2/V2_567.xml
|genus=Pellaea
|species=Pellaea intermedia
}}<!--

-->[[Category:Treatment]][[Category:Pellaea]]