View source for Cheilanthes eatonii

{{Treatment/ID
|accepted_name=Cheilanthes eatonii
|accepted_authority=Baker in Hooker & Baker
|publications={{Treatment/Publication
|title=in Hooker & Baker,Syn. Fil.
|place=4: 140. 1867
|year=1867
}}
|common_names=Eaton's lip fern
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Cheilanthes castanea
|authority=Maxon
}} {{Treatment/ID/Synonym
|name=Cheilanthes eatonii
|authority=forma castanea (Maxon) Correll
}}
|hierarchy=Pteridaceae;Cheilanthes;Cheilanthes eatonii
|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 eatonii]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>compact, 4–8 mm diam.; scales mostly bicolored, with broad, well-defined, dark, central stripe and narrow, light brown margins, linear-lanceolate, straight to slightly contorted, loosely appressed, persistent. <b>Leaves</b> clustered, 6–35 cm; vernation noncircinate. <b>Petiole</b> dark brown, rounded adaxially. <b>Blade</b> oblong-lanceolate, 3–4-pinnate at base, 1.5–5 cm wide; rachis rounded adaxially, with scattered linear-lanceolate scales and monomorphic pubescence. <b>Pinnae</b> not articulate, dark color of stalk continuing into pinna base, basal pair not conspicuously larger than adjacent pair, usually equilateral, appearing tomentose to glabrescent adaxially. <b>Costae</b> green adaxially for most of length; abaxial scales multiseriate, lanceolate to linear, truncate or subcordate at base, without overlapping basal lobes, conspicuous, the largest 0.4–0.7 mm wide, loosely imbricate, not concealing ultimate segments, erose-dentate, rarely with 1–2 cilia at base on a few scales. <b>Ultimate</b> segments oval to round, beadlike, the largest 1–3 mm, abaxially densely tomentose, adaxially pubescent with fine, unbranched hairs or glabrescent. <b>False</b> indusia marginal to obscurely inframarginal, somewhat differentiated, 0.05–0.25 mm wide. <b>Sori</b> ± continuous around segment margins. <b>Sporangia</b> containing 32 spores. n = 2n = 90, 120, apogamous.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Rocky slopes and ledges, found on a variety of substrates including limestone and granite
|elevation=300–3000 m
|distribution=Ariz.;Ark.;Colo.;N.Mex.;Okla.;Tex.;Utah;Va.;W.Va.;Mexico;Central America in Costa Rica.
|discussion=<p>As here circumscribed, <i>Cheilanthes eatonii</i> is a variable species comprising apogamous triploid and tetraploid cytotypes of unknown parentage. It includes plants previously identified as <i>C. castanea</i> and C. pinkavii (ined.). Type specimens of <i>C. eatonii</i> and <i>C. castanea</i> are quite distinct morphologically, but most plants here included within <i>C. eatonii</i> are intermediate between these two extremes (T. Reeves 1979). Because there is no clear morphologic break, <i>C. castanea</i> is placed here in synonymy under <i>C. eatonii</i> pending further study. Reports of hybridization between <i>C. eatonii</i> and <i>C. villosa</i> (D. B. Lellinger 1985) are based on specimens from western Texas and southern New Mexico that appear to be intermediate between these taxa in several characters. T. Reeves (1979) applied the name C. pinkavii to these specimens; that name has never been validly published. Formal recognition of this taxon is deferred pending completion of a biosystematic study of the <i>C. eatonii</i> complex as a whole.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cheilanthes eatonii
|author=
|authority=Baker in Hooker & Baker
|rank=species
|parent rank=genus
|synonyms=Cheilanthes castanea;Cheilanthes eatonii
|basionyms=
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Rocky slopes and ledges, found on a variety of substrates including limestone and granite
|elevation=300–3000 m
|distribution=Ariz.;Ark.;Colo.;N.Mex.;Okla.;Tex.;Utah;Va.;W.Va.;Mexico;Central America in Costa Rica.
|reference=None
|publication title=in Hooker & Baker,Syn. Fil.
|publication year=1867
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_280.xml
|genus=Cheilanthes
|species=Cheilanthes eatonii
}}<!--

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