Difference between revisions of "Smelowskia media"
Bot. Zhurn. (Moscow & Leningrad) 64: 167. 1979.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Smelowskia calycina var. media | |name=Smelowskia calycina var. media | ||
|authority=W. H. Drury & Rollins | |authority=W. H. Drury & Rollins | ||
| + | |rank=variety | ||
| + | |publication_title=Rhodora | ||
| + | |publication_place=54: 100. 1952 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|elevation=400-1500 m | |elevation=400-1500 m | ||
|distribution=N.W.T.;Yukon;Alaska. | |distribution=N.W.T.;Yukon;Alaska. | ||
| − | |discussion=<p>Smelowskia media resembles S. americana in aspects of habit, flowers, and fruits. It differs by having non-appressed (versus appressed) fruits, fruiting pedicels held at wider angles (greater than 40˚ versus less), and somewhat larger seeds (1.7–2.3 × 0.9–1.2 mm versus 1.1–1.9 × 0.6–0.9 mm).</p> | + | |discussion=<p><i>Smelowskia media</i> resembles <i>S. americana</i> in aspects of habit, flowers, and fruits. It differs by having non-appressed (versus appressed) fruits, fruiting pedicels held at wider angles (greater than 40˚ versus less), and somewhat larger seeds (1.7–2.3 × 0.9–1.2 mm versus 1.1–1.9 × 0.6–0.9 mm).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Smelowskia media | name=Smelowskia media | ||
| − | |||
|authority=(W. H. Drury & Rollins) Velichkin | |authority=(W. H. Drury & Rollins) Velichkin | ||
|rank=species | |rank=species | ||
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|publication year=1979 | |publication year=1979 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_1156.xml |
|tribe=Brassicaceae tribe Smelowskieae | |tribe=Brassicaceae tribe Smelowskieae | ||
|genus=Smelowskia | |genus=Smelowskia | ||
Latest revision as of 22:30, 5 November 2020
Plants sometimes canescent basally; caudex branched. Stems: several from base, unbranched, (0.2–)0.5–1.4(–1.8) dm, trichomes simple, 0.5–1.2 mm, mixed with smaller, dendritic ones. Basal leaves: petiole 0.7–3.5 cm, ciliate, trichomes simple; blade oblanceolate to obovate, or ovate to oblong in outline, (terminal segments linear, oblong, or ovate), 0.5–3 cm × 4–12 mm, (terminal segments 0.2–1.4 cm × 0.5–4 mm), margins usually pinnatifid, rarely apically 3 or 5-lobed, apex obtuse or subacute. Cauline leaves shortly petiolate or sessile; blade similar to basal, smaller distally. Racemes elongated in fruit. Fruiting pedicels usually spreading to divaricate, rarely divaricate-ascending, (often forming greater than 40˚ angle, straight or upcurved), proximalmost bracteate, 4–12 mm, pubescent, trichomes simple mixed with smaller, dendritic ones. Flowers: sepals 2–3 mm; petals white, suborbicular to obovate, 4–5 × 2–3 mm, narrowed to claw, 1.5–2 mm, apex rounded; anthers oblong, 0.5–0.6 mm. Fruits divaricate-ascending, ellipsoid to oblong, 4-angled, 5–11 × 2–3 mm, base and apex cuneate; valves each with prominent midvein; ovules 8–12 per ovary; style 0.1–0.5 mm. Seeds 1.7–2.2 × 0.9–1.1 mm. 2n = 12.
Phenology: Flowering Jun–Jul.
Habitat: Talus scree slopes, dry calcareous gravel flats, limestone scree, tundra turf, seepages, bluffs, stony slopes, grassy quartzite slopes, gravelly lake shores
Elevation: 400-1500 m
Distribution
N.W.T., Yukon, Alaska.
Discussion
Smelowskia media resembles S. americana in aspects of habit, flowers, and fruits. It differs by having non-appressed (versus appressed) fruits, fruiting pedicels held at wider angles (greater than 40˚ versus less), and somewhat larger seeds (1.7–2.3 × 0.9–1.2 mm versus 1.1–1.9 × 0.6–0.9 mm).
Selected References
None.