View source for Argyrochosma incana

{{Treatment/ID
|accepted_name=Argyrochosma incana
|accepted_authority=(C. Presl) Windham
|publications={{Treatment/Publication
|title=Amer. Fern J.
|place=77: 40. 1987
|year=1987
}}
|basionyms={{Treatment/ID/Synonym
|name=Notholaena incana
|authority=C. Presl
}}
|synonyms=
|hierarchy=Pteridaceae;Argyrochosma;Argyrochosma incana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pteridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Argyrochosma]]</div><div class="higher-taxon"><small>species</small>[[Argyrochosma incana]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stem </b>scales brown. <b>Leaves</b> 5–20 cm. <b>Petiole</b> black, 0.75–2 mm diam. <b>Blade</b> ovate, 3–4-pinnate proximally, leathery, abaxially covered by dense, white farina, adaxially glabrous; rachis rounded to slightly flattened adaxially. <b>Pinna</b> costae straight or nearly so, branches not arising from prominent angles. <b>Ultimate</b> segments articulate, dark color of stalks stopping abruptly at bases; segment margins plane, never concealing sporangia; veins obscure adaxially. <b>Sporangia</b> following secondary veins for most of length, containing 64 spores. <b>2n</b> = 54.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Sheltered cracks and ledges on canyon walls, restricted to rocks of volcanic origin in the flora
|elevation=1200–1700 m
|distribution=Ariz.;N.Mex.;Mexico;West Indies in Hispaniola;Central America in Guatemala.
|discussion=<p>Argyrochosma incana has been collected at about 10 localities in the flora area, all within 50 km of the Mexican border. Most herbarium specimens were previously identified as A. limitanea, which is easily distinguished from A. incana by the characteristics given in the key. In addition, all known plants of A. limitanea have 32 spores per sporangium; those of A. incana have 64. Although A. incana shows considerable morphologic and biochemical diversity in Mexico, populations in the United States are relatively uniform.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Argyrochosma incana
|author=
|authority=(C. Presl) Windham
|rank=species
|parent rank=genus
|synonyms=
|basionyms=Notholaena incana
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Sheltered cracks and ledges on canyon walls, restricted to rocks of volcanic origin in the flora
|elevation=1200–1700 m
|distribution=Ariz.;N.Mex.;Mexico;West Indies in Hispaniola;Central America in Guatemala.
|reference=None
|publication title=Amer. Fern J.
|publication year=1987
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_782.xml
|genus=Argyrochosma
|species=Argyrochosma incana
}}<!--

-->[[Category:Treatment]][[Category:Argyrochosma]]