Difference between revisions of "Micranthes nelsoniana"
in N. L. Britton et al., N. Amer. Fl. 22: 147. 1905 ,.
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|common_names=Dotted or Nelson’s saxifrage | |common_names=Dotted or Nelson’s saxifrage | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Saxifraga nelsoniana | |name=Saxifraga nelsoniana | ||
|authority=D. Don | |authority=D. Don | ||
| + | |publication_title=Trans. Linn. Soc. London | ||
| + | |publication_place=13: 355. 1822 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|distribution=North America;Europe (ne Russia);Asia. | |distribution=North America;Europe (ne Russia);Asia. | ||
|discussion=<p>Varieties 6 (5 in the flora).</p><!-- | |discussion=<p>Varieties 6 (5 in the flora).</p><!-- | ||
| − | --><p>Although sometimes reported for North America, <i>Saxifraga</i> nelsoniana <i></i>var.<i> aestivalis</i> (Fischer & C. A. Meyer) H. Ohba (S. aestivalis Fischer & C. A. Meyer) is found only in Eurasia.</p> | + | --><p>Although sometimes reported for North America, <i>Saxifraga</i> nelsoniana <i></i></i>var.<i><i> aestivalis</i> (Fischer & C. A. Meyer) H. Ohba (S. aestivalis Fischer & C. A. Meyer) is found only in Eurasia.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V8/V8_90.xml |
|genus=Micranthes | |genus=Micranthes | ||
|species=Micranthes nelsoniana | |species=Micranthes nelsoniana | ||
Revision as of 20:31, 24 September 2019
Plants solitary or tufted, with bulbils on branched caudices, rhizomatous. Leaves basal; petiole rounded, 3–30 cm; blade reniform to round, 2–9 cm, thin or slightly fleshy, sometimes thick and fleshy, base cordate, margins deeply crenate, eciliate or sparsely short glandular-ciliate, surfaces glabrous or ± hairy. Inflorescences 10+-flowered, ± open, lax to congested, conic, sometimes also glomerate thyrses, 10–35 cm, tangled-hairy (pilose-arachnoid) at least distally, sometimes also purple- or brown-tipped stipitate-glandular. Flowers: sepals reflexed, ± ovate; petals white to pinkish, rarely orange-spotted, ovate to oblong, narrowly to broadly clawed, 2.5–4.5 mm, longer than sepals; filaments distinctly club-shaped; pistils connate 1/2–3/4 their lengths; ovary superior (to 1/3 adnate to hypanthium). Capsules green to yellow and purplish tinged to dark purple, valvate.
Distribution
North America, Europe (ne Russia), Asia.
Discussion
Varieties 6 (5 in the flora).
Although sometimes reported for North America, Saxifraga nelsoniana var. aestivalis (Fischer & C. A. Meyer) H. Ohba (S. aestivalis Fischer & C. A. Meyer) is found only in Eurasia.
Selected References
None.
Lower Taxa
Key
| 1 | Inflorescences purple- or brown-tipped stipitate- glandular. | Micranthes nelsoniana var. nelsoniana |
| 1 | Inflorescences tangled-hairy | > 2 |
| 2 | Leaf blade margins 9-12-toothed; capsules 6-12 mm; mostly Queen Charlotte Islands, adjacent coastal British Columbia. | Micranthes nelsoniana var. carlottae |
| 2 | Leaf blade margins 12-18-toothed; capsules 3-8 mm; Oregon to Alaska and nw Canada | > 3 |
| 3 | Inflorescences somewhat lax, hairs appressed; Coast Ranges and Cascades, British Columbia, Oregon, Washington. | Micranthes nelsoniana var. cascadensis |
| 3 | Inflorescences congested, hairs ascending; nw Canada, Alaska | > 4 |
| 4 | Leaf blades thick, fleshy; pistils connate most of their lengths; Aleutian Islands, Alaska. | Micranthes nelsoniana var. insularis |
| 4 | Leaf blades thin, not fleshy; pistils connate to 3/4 their lengths; nw Canada, Alaska. | Micranthes nelsoniana var. porsildiana |