View source for Cheilanthes gracillima

{{Treatment/ID
|accepted_name=Cheilanthes gracillima
|accepted_authority=D. C. Eaton in Emory
|publications={{Treatment/Publication
|title=in Emory,Rep. U.S. Mex. Bound.
|place=2: 234. 1859
|year=1859
}}
|common_names=Lace fern
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Myriopteris gracillima
|authority=(D. C. Eaton) J. Smith
}}
|hierarchy=Pteridaceae;Cheilanthes;Cheilanthes gracillima
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Cheilanthes]]</div><div class="higher-taxon"><small>species</small>[[Cheilanthes gracillima]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>short-creeping, 4–8 mm diam.; scales uniformly brown or with poorly defined, dark, central stripe, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent. <b>Leaves</b> clustered, 5–25 cm; vernation noncircinate. <b>Petiole</b> dark brown, rounded adaxially. <b>Blade</b> linear-oblong, 2–3-pinnate at base, 1–2.5 cm wide; rachis rounded adaxially, with scattered linear scales, not pubescent. <b>Pinnae</b> not articulate, dark color of stalk continuing into pinna base, basal pair not conspicuously larger than adjacent pair, usually equilateral, appearing sparsely pubescent or glabrous adaxially. <b>Costae</b> green adaxially for most of length; abaxial scales multiseriate, linear, truncate at base, inconspicuous, the largest 0.1–0.4 mm wide, loosely imbricate, not concealing ultimate segments, long-ciliate, cilia usually confined to base. <b>Ultimate</b> segments oblong or rarely oval, beadlike, the largest 1.5–3 mm, abaxially densely covered with branched hairs and small, ciliate scales, adaxially with scattered, branched hairs or glabrescent. <b>False</b> indusia marginal, slightly differentiated, 0.05–0.25 mm wide. <b>Sori</b> ± continuous around segment margins. <b>Sporangia</b> containing 64 spores.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Cliffs and rocky slopes, usually on igneous substrates
|elevation=800–3000 m
|distribution=Alta.;B.C.;Calif.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.
|discussion=<p><i>Cheilanthes gracillima</i> is a well-marked species, but it apparently hybridizes with <i>C. intertexta</i> (see reticulogram) to produce plants of intermediate morphology with malformed spores that have been called <i>C. gracillima</i> <i></i></i>var.<i><i> aberrans</i> M. E. Jones (A. R. Smith 1974).</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cheilanthes gracillima
|author=
|authority=D. C. Eaton in Emory
|rank=species
|parent rank=genus
|synonyms=Myriopteris gracillima
|basionyms=
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Cliffs and rocky slopes, usually on igneous substrates
|elevation=800–3000 m
|distribution=Alta.;B.C.;Calif.;Idaho;Mont.;Nev.;Oreg.;Utah;Wash.
|reference=None
|publication title=in Emory,Rep. U.S. Mex. Bound.
|publication year=1859
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V2/V2_467.xml
|genus=Cheilanthes
|species=Cheilanthes gracillima
}}<!--

-->[[Category:Treatment]][[Category:Cheilanthes]]