Difference between revisions of "Saxifraga nathorstii"
Denkschr. Kaiserl. Akad. Wiss., Wein. Math.-Naturwiss. Kl. 77: 661. 1905 (as nathorsti),.
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|distribution=Greenland. | |distribution=Greenland. | ||
| − | |discussion=<p>Saxifraga nathorstii is known only from northeastern Greenland. T. W. Böcher (1941) showed cytologically that this species may be an allopolyploid that originated as a hybrid between S. oppositifolia and S. aizoides; morpho-logically, phenologically, and ecologically, it is intermediate between the two species (see also T. J. Sørensen 1933).</p> | + | |discussion=<p><i>Saxifraga nathorstii</i> is known only from northeastern Greenland. T. W. Böcher (1941) showed cytologically that this species may be an allopolyploid that originated as a hybrid between <i>S. oppositifolia</i> and <i>S. aizoides</i>; morpho-logically, phenologically, and ecologically, it is intermediate between the two species (see also T. J. Sørensen 1933).</p> |
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V8/V8_267.xml |
|genus=Saxifraga | |genus=Saxifraga | ||
|species=Saxifraga nathorstii | |species=Saxifraga nathorstii | ||
Revision as of 18:05, 18 September 2019
Plants loosely mat-forming, not stoloniferous, rhizomatous, from caudex. Leaves cauline, (not imbricate), opposite (distalmost alternate); petiole absent; blade oblanceolate to elliptic, unlobed, 5–9 mm, fleshy, margins entire, ciliate, with 1(–3) lime-secreting hydathodes, apex obtuse, surfaces glabrous. Inflorescences solitary flowers, sometimes 2-flowered cymes, ebracteate, 3–4 cm, glabrate. Flowers: sepals erect, ovate, margins ciliate, surfaces glabrous; petals salmon to flesh colored, sometimes red or orange, rarely yellow, sometimes violet tinged, not spotted, obovate to oblanceolate, 12–15 mm, longer than sepals; ovary to 1/4 inferior. 2n = 52.
Phenology: Flowering summer.
Habitat: Arctic marshes, damp tundra, alluvial river beds, dessicated ponds, inland nunataks
Elevation: 0-1200 m
Discussion
Saxifraga nathorstii is known only from northeastern Greenland. T. W. Böcher (1941) showed cytologically that this species may be an allopolyploid that originated as a hybrid between S. oppositifolia and S. aizoides; morpho-logically, phenologically, and ecologically, it is intermediate between the two species (see also T. J. Sørensen 1933).
Selected References
None.