Difference between revisions of "Primula tschuktschorum"
in A. E. Nordenskiöld, Vega Exp. Vetensk. Iakttag. 1: 516, plate 9. 1882 ,.
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|name=Primula beringensis | |name=Primula beringensis | ||
|authority=(A. E. Porsild) Jurtzev | |authority=(A. E. Porsild) Jurtzev | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Primula tschuktschorum subsp. beringensis | |name=Primula tschuktschorum subsp. beringensis | ||
|authority=(A. E. Porsild) Jurtzev & Kozhevnikov | |authority=(A. E. Porsild) Jurtzev & Kozhevnikov | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Primula tschuktschorum var. beringensis | |name=Primula tschuktschorum var. beringensis | ||
|authority=A. E. Porsild | |authority=A. E. Porsild | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Primulaceae;Primula;Primula tschuktschorum | |hierarchy=Primulaceae;Primula;Primula tschuktschorum | ||
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name=Primula tschuktschorum | name=Primula tschuktschorum | ||
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|authority=Kjellman in A. E. Nordenskiöld | |authority=Kjellman in A. E. Nordenskiöld | ||
|rank=species | |rank=species | ||
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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/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V8/V8_591.xml |
|genus=Primula | |genus=Primula | ||
|species=Primula tschuktschorum | |species=Primula tschuktschorum | ||
Revision as of 22:29, 16 December 2019
Plants 2–15 cm, herbaceous; rhizomes thick, short; rosettes not clumped; vegetative parts completely efarinose. Leaves not aromatic, indistinctly petiolate; petiole winged; blade without deep reticulate veins abaxially, linear-lanceolate, 4–5 × 0.2–0.4 cm, fleshy, margins entire or remotely denticulate, apex acute, surfaces glabrous. Inflorescences 1–3(–6)-flowered; involucral bracts plane at base, ± equal. Pedicels erect to slightly reflexed, somewhat thick, 2–10 mm, length ca. 1–2 times bracts, flexuous. Flowers heterostylous; calyx green or greenish black, campanulate, 5–7 mm; corolla rose-magenta, tube 5–7 mm, length 1 times calyx, eglandular, limb 10–20 mm diam., lobes 5–10 mm, apex unlobed or rarely cleft to base. Capsules broadly cylindric, length 2 times calyx. Seeds without flanged edges, vesiculate. 2n = 22.
Phenology: Flowering summer.
Habitat: Moist, frost-patterned ground and gravelly stream banks or rivulets on tundra
Elevation: 0-400 m
Distribution
Alaska, e Asia (Russian Far East).
Discussion
Primula tschuktschorum has a long history of taxonomic confusion with its close relative P. pumila, from which it is distinguished by its heterostylous flowers, more delicate appearance, and lack of farina. It appears to be restricted in North America to the Bering Strait region of Alaska between the Seward Peninsula and Bristol Bay, where it grows occasionally in coastal areas and more commonly at higher elevations in the mountains around late-lying snowbanks.
Selected References
None.