familyCaryophyllaceae
subfamilyCaryophyllaceae subfam. Alsinoideae
genusStellaria
speciesStellaria longipes
subspeciesStellaria longipes subsp. arenicola
Difference between revisions of "Stellaria longipes subsp. arenicola"
Rhodora 93: 132. 1991.
Common names: Lake Athabasca starwort
Endemic
Basionym: Stellaria arenicola Raup J. Arnold Arbor. 17: 248, plate 196. 1936
Synonyms: Stellaria longipes var. arenicola (Raup) B. Boivin
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}} | }} | ||
|common_names=Lake Athabasca starwort | |common_names=Lake Athabasca starwort | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Stellaria arenicola | |name=Stellaria arenicola | ||
|authority=Raup | |authority=Raup | ||
| + | |rank=species | ||
|publication_title=J. Arnold Arbor. | |publication_title=J. Arnold Arbor. | ||
|publication_place=17: 248, plate 196. 1936 | |publication_place=17: 248, plate 196. 1936 | ||
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|name=Stellaria longipes var. arenicola | |name=Stellaria longipes var. arenicola | ||
|authority=(Raup) B. Boivin | |authority=(Raup) B. Boivin | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Caryophyllaceae;Caryophyllaceae subfam. Alsinoideae;Stellaria;Stellaria longipes;Stellaria longipes subsp. arenicola | |hierarchy=Caryophyllaceae;Caryophyllaceae subfam. Alsinoideae;Stellaria;Stellaria longipes;Stellaria longipes subsp. arenicola | ||
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|elevation=200-300 m | |elevation=200-300 m | ||
|distribution=Alta.;Sask. | |distribution=Alta.;Sask. | ||
| − | |discussion=<p>Confined to the extensive mobile sand dunes on the south side of Lake Athabasca, < | + | |discussion=<p>Confined to the extensive mobile sand dunes on the south side of Lake Athabasca, <i></i>subsp.<i> arenicola</i> is largely self-pollinating but is interfertile with <i></i>subsp.<i> longipes</i>, with which it intergrades in its natural habitat.</p><!-- |
| − | --><p>Very rarely, individual plants of < | + | --><p>Very rarely, individual plants of <i></i>subsp.<i> longipes</i> with straw-colored capsules are encountered in other localities. These are probably due to the presence of a recessive gene for capsule color that is of widespread but rare occurrence in these populations. Only on the Lake Athabasca sand dunes have selective pressures been sufficient for it to evolve into a distinct biotype.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Stellaria longipes subsp. arenicola | name=Stellaria longipes subsp. arenicola | ||
| − | |||
|authority=(Raup) C. C. Chinnappa & J. K. Morton | |authority=(Raup) C. C. Chinnappa & J. K. Morton | ||
|rank=subspecies | |rank=subspecies | ||
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|publication title=Rhodora | |publication title=Rhodora | ||
|publication year=1991 | |publication year=1991 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V5/V5_226.xml |
|subfamily=Caryophyllaceae subfam. Alsinoideae | |subfamily=Caryophyllaceae subfam. Alsinoideae | ||
|genus=Stellaria | |genus=Stellaria | ||
Latest revision as of 22:09, 5 November 2020
Plants forming loose clumps, with elongate, straggling stems. Leaf blades narrowly lanceolate. Capsules straw colored. 2n = 52.
Phenology: Flowering late spring–summer.
Habitat: Inland sand dunes
Elevation: 200-300 m
Discussion
Confined to the extensive mobile sand dunes on the south side of Lake Athabasca, subsp. arenicola is largely self-pollinating but is interfertile with subsp. longipes, with which it intergrades in its natural habitat.
Very rarely, individual plants of subsp. longipes with straw-colored capsules are encountered in other localities. These are probably due to the presence of a recessive gene for capsule color that is of widespread but rare occurrence in these populations. Only on the Lake Athabasca sand dunes have selective pressures been sufficient for it to evolve into a distinct biotype.
Selected References
None.
Lower Taxa
None.