View source for Pellaea glabella subsp. occidentalis

{{Treatment/ID
|accepted_name=Pellaea glabella subsp. occidentalis
|accepted_authority=(E. E. Nelson) Windham
|publications={{Treatment/Publication
|title=Contr. Univ. Michigan Herb.
|place=19: 39. 1993
|year=1993
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Pellaea atropurpurea var. occidentalis
|authority=E. E. Nelson
|rank=variety
|publication_title=Fern Bull.
|publication_place=7: 30. 1899
}}
|synonyms={{Treatment/ID/Synonym
|name=Pellaea glabella var. nana
|authority=(Richardson) Cody
|rank=variety
}} {{Treatment/ID/Synonym
|name=Pellaea glabella var. occidentalis
|authority=(E. E. Nelson) Butters
|rank=variety
}} {{Treatment/ID/Synonym
|name=Pellaea occidentalis
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Pellaea pumila
|authority=
|rank=species
}}
|hierarchy=Pteridaceae;Pellaea;Pellaea glabella;Pellaea glabella subsp. occidentalis
|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 glabella]]</div><div class="higher-taxon"><small>subspecies</small>[[Pellaea glabella subsp. occidentalis]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Ultimate </b>segments glabrous; sporangia containing 64 spores; spores averaging 38–52 µm diam. <b>2n</b> = 58.</span><!--

-->{{Treatment/Body
|phenology=Sporulating summer–fall.
|habitat=Calcareous cliffs and ledges, usually on limestone
|elevation=500–2800 m
|distribution=Man.;Sask.;Mont.;N.Dak.;S.Dak.;Utah;Wyo.
|discussion=<p>Most recent treatments refer to this taxon as <i>Pellaea glabella</i> <i></i>var.<i> occidentalis</i>. It appears to be synonymous, however, with <i>P. glabella</i> <i></i>var.<i> nana</i>, which was proposed 76 years earlier and has priority if the taxon is treated at varietal rank. This diploid (treated here as a subspecies) often shows prominent articulation lines near the base of the petiole, and plants with less divided leaves are occasionally misidentified as <i>P. breweri</i>. At least some of the sporangia of <i></i>subsp.<i> occidentalis</i> are long-stalked, however, whereas those of <i>P. breweri</i> are sessile or subsessile.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Pellaea glabella subsp. occidentalis
|authority=(E. E. Nelson) Windham
|rank=subspecies
|parent rank=species
|synonyms=Pellaea glabella var. nana;Pellaea glabella var. occidentalis;Pellaea occidentalis;Pellaea pumila
|basionyms=Pellaea atropurpurea var. occidentalis
|family=Pteridaceae
|phenology=Sporulating summer–fall.
|habitat=Calcareous cliffs and ledges, usually on limestone
|elevation=500–2800 m
|distribution=Man.;Sask.;Mont.;N.Dak.;S.Dak.;Utah;Wyo.
|reference=None
|publication title=Contr. Univ. Michigan Herb.
|publication year=1993
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V2/V2_625.xml
|genus=Pellaea
|species=Pellaea glabella
|subspecies=Pellaea glabella subsp. occidentalis
}}<!--

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