Directory       News       Site Map       Home
         
    Jepson eFlora: Taxon page
Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Previous taxon

GENTIANACEAE GENTIAN FAMILY

James S. Pringle, except as noted

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

SWERTIA

Bruce G. Baldwin

Perennial herb; non-flowering rosettes appearing with flower-stems. Leaf: basal ± petioled; cauline generally (sub)opposite or some alternate, < basal, bases not fused-sheathing. Inflorescence: cyme or panicle of dense clusters. Flower: parts generally in 5s, sometimes in 4s; calyx fused near base, lobes lanceolate; corolla rotate (bell-shaped), lobes >> tube, ridge between stamens fringed or scaled or neither, nectary pits prominent, 2 per lobe, margins of openings ± fringed; ovary sessile, style short, poorly differentiated, persistent, entire, stigmas 2.
± 135 species: temperate North America, Eurasia, Africa. (E. Sweert, Dutch herbalist, 1552–1612) [von Hagen & Kadereit 2002 Syst Bot 27:548–572] Other taxa in TJM (1993) moved to Frasera.
Unabridged etymology: (E. Sweert, Swert, or Sweerts, Dutch botanist, florist, herbalist, artist, 1552–1612)
Unabridged references: [St. John 1941 Amer Midl Naturalist 21:1–29]

Previous taxon: Gentianopsis simplex
Next taxon: Swertia perennis

Contact/Feedback

Name search

Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 17 2014
Citation for this treatment: [Author of taxon treatment] 2012. Swertia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9256, accessed on Apr 17 2014

Copyright © 2013 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.


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.
READ ABOUT YELLOW FLAGS
map of distribution 1
View elevation by latitude chart Data provided by the participants of the Consortium of California Herbaria.
View all CCH records