Difference between revisions of "Atriplex wolfii var. tenuissima"

(A. Nelson) S. L. Welsh

Rhodora 102: 422. 2001.

Endemic
Basionym: Atriplex tenuissima A. Nelson Bot. Gaz. 34: 359. 1902
Synonyms: Atriplex greenei A. Nelson Atriplex tenuissima var. greenei (A. Nelson) Fosberg Obione tenuissima
Treatment appears in FNA Volume 4. Treatment on page 355.
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|year=2001
 
|year=2001
 
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|basionyms={{Treatment/ID/Synonym
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|special_status={{Treatment/ID/Special_status
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|code=E
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|label=Endemic
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}}
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|basionyms={{Treatment/ID/Basionym
 
|name=Atriplex tenuissima
 
|name=Atriplex tenuissima
 
|authority=A. Nelson
 
|authority=A. Nelson
 +
|rank=species
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|publication_title=Bot. Gaz.
 +
|publication_place=34: 359. 1902
 
}}
 
}}
 
|synonyms={{Treatment/ID/Synonym
 
|synonyms={{Treatment/ID/Synonym
 
|name=Atriplex greenei
 
|name=Atriplex greenei
 
|authority=A. Nelson
 
|authority=A. Nelson
}}{{Treatment/ID/Synonym
+
|rank=species
 +
}} {{Treatment/ID/Synonym
 
|name=Atriplex tenuissima var. greenei
 
|name=Atriplex tenuissima var. greenei
 
|authority=(A. Nelson) Fosberg
 
|authority=(A. Nelson) Fosberg
}}{{Treatment/ID/Synonym
+
|rank=variety
 +
}} {{Treatment/ID/Synonym
 
|name=Obione tenuissima
 
|name=Obione tenuissima
|authority=unknown
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|authority=
 +
|rank=species
 
}}
 
}}
 
|hierarchy=Chenopodiaceae;Atriplex;Atriplex subg. Obione;Atriplex sect. Obione;Atriplex subsect. Wolfianae;Atriplex wolfii;Atriplex wolfii var. tenuissima
 
|hierarchy=Chenopodiaceae;Atriplex;Atriplex subg. Obione;Atriplex sect. Obione;Atriplex subsect. Wolfianae;Atriplex wolfii;Atriplex wolfii var. tenuissima
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|elevation=1500-2300 m
 
|elevation=1500-2300 m
 
|distribution=Colo.;Utah;Wyo.
 
|distribution=Colo.;Utah;Wyo.
|discussion=<p>Specimens cited by H. M. Hall and F. E. Clements (1923) from central Utah within their concept of Atriplex wolfii in a strict sense have fruiting bracteoles in which the terminal, or apparently terminal, cusp is off-set from the median position, thus appearing to be lateral and lacking a terminal cusp. Other materials cited by them away from the south-central Colorado type locality of var. tenuissima bear bracteoles with a similar displacement of the terminal cusp. Hall and Clements placed such specimens within A. wolfii. Bracts of that type are unmatched among the materials of var. wolfii in southern Colorado. As interpreted here, the plants belong to var. tenuissima.</p>
+
|discussion=<p>Specimens cited by H. M. Hall and F. E. Clements (1923) from central Utah within their concept of <i>Atriplex wolfii</i> in a strict sense have fruiting bracteoles in which the terminal, or apparently terminal, cusp is off-set from the median position, thus appearing to be lateral and lacking a terminal cusp. Other materials cited by them away from the south-central Colorado type locality of <i></i>var.<i> tenuissima</i> bear bracteoles with a similar displacement of the terminal cusp. Hall and Clements placed such specimens within <i>A. wolfii</i>. Bracts of that type are unmatched among the materials of <i></i>var.<i> wolfii</i> in southern Colorado. As interpreted here, the plants belong to <i></i>var.<i> tenuissima</i>.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
name=Atriplex wolfii var. tenuissima
 
name=Atriplex wolfii var. tenuissima
|author=
 
 
|authority=(A. Nelson) S. L. Welsh
 
|authority=(A. Nelson) S. L. Welsh
 
|rank=variety
 
|rank=variety
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|publication title=Rhodora
 
|publication title=Rhodora
 
|publication year=2001
 
|publication year=2001
|special status=
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|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V4/V4_685.xml
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|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_685.xml
 
|genus=Atriplex
 
|genus=Atriplex
 
|subgenus=Atriplex subg. Obione
 
|subgenus=Atriplex subg. Obione

Latest revision as of 23:00, 5 November 2020

Stems erect, intricately branched, 0.5–3 dm. Leaves: proximalmost blade linear, 4–20 × 2–3 mm, distalmost blade bracteate, sometimes ovate or ovate-lanceolate, densely grayish scurfy. Staminate flowers confined to a few distal axils. Fruiting bracteoles ovate or ovate-lanceolate in profile, (1.8–)2.3–2.7 × 1.5–2.1 mm, distal lobe typically larger and broader than lateral lobes, terminal tooth typically much largest or with this apparently displaced laterally.


Phenology: Flowering summer–fall.
Habitat: Plants of saline bottoms, often in margins of marshy areas with salt grass, greasewood, and seepweed
Elevation: 1500-2300 m

Discussion

Specimens cited by H. M. Hall and F. E. Clements (1923) from central Utah within their concept of Atriplex wolfii in a strict sense have fruiting bracteoles in which the terminal, or apparently terminal, cusp is off-set from the median position, thus appearing to be lateral and lacking a terminal cusp. Other materials cited by them away from the south-central Colorado type locality of var. tenuissima bear bracteoles with a similar displacement of the terminal cusp. Hall and Clements placed such specimens within A. wolfii. Bracts of that type are unmatched among the materials of var. wolfii in southern Colorado. As interpreted here, the plants belong to var. tenuissima.

Selected References

None.

Lower Taxa

None.
Stanley L. Welsh +
(A. Nelson) S. L. Welsh +
Atriplex tenuissima +
Colo. +, Utah +  and Wyo. +
1500-2300 m +
Plants of saline bottoms, often in margins of marshy areas with salt grass, greasewood, and seepweed +
Flowering summer–fall. +
Atriplex greenei +, Atriplex tenuissima var. greenei +  and Obione tenuissima +
Atriplex wolfii var. tenuissima +
Atriplex wolfii +
variety +