View source for Pellaea truncata

{{Treatment/ID
|accepted_name=Pellaea truncata
|accepted_authority=Goodding
|publications={{Treatment/Publication
|title=Muhlenbergia
|place=8: 94. 1912
|year=1912
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Pellaea longimucronata
|authority=Hooker
|rank=species
}} {{Treatment/ID/Synonym
|name=Pellaea wrightiana var. longimucronata
|authority=(Hooker) Davenport
|rank=variety
}}
|hierarchy=Pteridaceae;Pellaea;Pellaea truncata
|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 truncata]]</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 bicolored, linear-subulate, 0.1–0.3 mm wide, centers black, thick, margins brown, thin, erose-dentate. <b>Leaves</b> somewhat dimorphic, sterile leaves shorter and less divided than fertile leaves, clustered on stems, 8–40 cm; croziers sparsely villous. <b>Petiole</b> dark brown, lustrous, flattened or slightly grooved adaxially, without prominent articulation lines. <b>Blade</b> ovate-deltate, usually 2-pinnate proximally, 4–18 cm wide; rachis brown throughout, straight, shallowly grooved adaxially, usually glabrous. <b>Pinnae</b> perpendicular to rachis to slightly ascending, not decurrent on rachis, usually with 9–25 ultimate segments; costae straight, 20–70 mm, much longer than fertile ultimate segments. <b>Ultimate</b> segments narrowly oblong, 4–10 mm, leathery, glabrous; margins recurved on fertile segments, usually covering less than 1/2 abaxial surface, borders whitish, nearly entire; apex mucronate. <b>Veins</b> of ultimate segments obscure. <b>Sporangia</b> long-stalked, containing 64 spores, intermixed with abundant farina-producing glands. <b>2n</b> = 58.</span><!--

-->{{Treatment/Body
|phenology=Sporulating late spring–fall.
|habitat=Cliffs and rocky slopes, on various substrates but rarely observed on limestone
|elevation=600–2500 m
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;n Mexico.
|discussion=<p>Most manuals refer to <i>Pellaea truncata</i> as P. longimucronata, a name shown to be invalid by A. Cronquist et al. (1972+, vol. 1). Populations located near the range of <i>P. mucronata</i> in the Mojave Desert are often difficult to identify because of the subtlety of the characters involved and an apparent tendency to produce sterile (and possibly fertile) hybrids. Morphologically intermediate hybrids between <i>P. truncata</i> and <i>P. wrightiana</i> are common in regions where the ranges of the two species overlap, but these are easily identified by their malformed spores.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pellaea truncata
|authority=Goodding
|rank=species
|parent rank=genus
|synonyms=Pellaea longimucronata;Pellaea wrightiana var. longimucronata
|basionyms=
|family=Pteridaceae
|phenology=Sporulating late spring–fall.
|habitat=Cliffs and rocky slopes, on various substrates but rarely observed on limestone
|elevation=600–2500 m
|distribution=Ariz.;Calif.;Colo.;Nev.;N.Mex.;Tex.;Utah;n Mexico.
|reference=None
|publication title=Muhlenbergia
|publication year=1912
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V2/V2_8.xml
|genus=Pellaea
|species=Pellaea truncata
}}<!--

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