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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual to perennial herb [to trees]. Stem: decumbent to erect, < 2 m, simple or branched. Leaf: simple, cauline, sometimes also basal, opposite or whorled, entire, sessile or basal ± petioled; stipules 0. Flower: bisexual, radial, parts in 4s or 5s except pistil 1; sepals fused, persistent; petals fused, ± persistent, sinus between lobes often unappendaged; stamens epipetalous, alternate corolla lobes; ovary superior, chamber 1, placentas parietal, often intruding, stigmas 1–2. Fruit: capsule, 2-valved. Seed: many.
± 90 genera, 1800 species: worldwide; some cultivated (Eustoma, Exacum, Gentiana). [Struwe & Albert 2002 Gentianaceae. Cambridge Univ Press] Gentianella tenella moved to Comastoma. Key to genera revised by Bruce G. Baldwin. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Wood & Weaver 1982 J Arnold Arbor 63:441–487; Struwe & Albert 2002 Gentianaceae: Systematics and Natural History. Cambridge Univ Press]
Key to Gentianaceae
Perennial herb (non-flowering rosettes preceding flower-stems, plants dying after flowering in Frasera albomarginata, Frasera parryi, Frasera puberulenta, Frasera speciosa, and Frasera umpquaensis; non-flowering rosettes appearing with flower-stems in others). Leaf: basal ± petioled; cauline opposite or whorled, < basal, base often fused-sheathing. Inflorescence: cyme or panicle of dense clusters. Flower: parts in 4s; calyx fused near base, lobes lanceolate; corolla rotate (bell-shaped), lobes >> tube, ridge between stamens fringed or scaled or 0, nectary pits prominent, 1(2) per lobe, margins of openings variously fringed; ovary sessile, style long and well differentiated or short and poorly differentiated, persistent, entire, stigmas 2.Key to Frasera
± 15 species: temperate North America. (J. Fraser, Scottish collector of North America plants, 1750–1811) [von Hagen & Kadereit 2002 Syst Bot 27:548–572]
Unabridged references: [St. John 1941 Amer Midl Naturalist 21:1–29]
Plant 7–20 dm, glabrous or stem, leaves puberulent. Stem: 1. Leaf: basal 7–50 cm, 1–15 cm wide, oblanceolate to elliptic-obovate, tips rounded to acute; cauline whorled, lance-oblong, tips acute. Inflorescence: elongate, open proximally, ± dense distally; pedicels 1–10 cm. Flower: calyx 12–25 mm; corolla 12–20 mm, light yellow-green, purple-dotted or -streaked, lobes elliptic-oblong, acute to short-acuminate, ridge between stamens with deeply divided scales, nectary pits 2 per lobe, narrowly elliptic.
2n=78. Montane meadows, open woodland; 1500–3000 m. Klamath Ranges, High North Coast Ranges, High Sierra Nevada, Warner Mountains; to Washington, South Dakota, New Mexico. [Swertia radiata (Kellogg) Kuntze var. radiata] Jul–Aug [Online Interchange]
Unabridged note: Expanded author citation: Frasera speciosa Douglas ex Griseb.
Previous taxon: Frasera puberulenta
Next taxon: Frasera tubulosa
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 31 2015
Citation for this treatment: [Author of taxon treatment] 2013. Frasera, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=26087, accessed on Jul 31 2015
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|Geographic subdivisions indicated for the distribution of Frasera speciosa|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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