|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
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 |
Perennial herb, shrub, generally ± green, parasitic on aboveground parts of woody plants; dioecious [monoecious]. Stem: brittle; 2° branches generally many. Leaf: simple, entire, opposite, 4-ranked, with blade or scale-like (then each pair generally fused). Inflorescence: spikes or cymes, axillary or terminal; bracts opposite, 4-ranked, scale-like, each pair fused. Flower: unisexual, radial, 2–4 mm; perianth parts in 1 series. Staminate flower: perianth parts 3–4(7); anthers generally sessile, opposite and generally on perianth parts. Pistillate flower: perianth parts generally 2–4; ovary inferior, 1-chambered, style unbranched, stigma ± obscure. Fruit: berry, shiny. Seed: 1(2), without thickened coat, gelatinous.
7 genera, ± 450 species: tropics, generally northern temperate. All parts of most members may be TOXIC. [Kuijt 2003 Syst Bot Monogr 66:1–643] Sometimes included in Loranthaceae; parasitic on plants in many other families. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Kuijt 1969 Biol Parasitic Fl Plants; Kuijt 1982 J Arnold Arbor 63:401–410; Kuijt 2003 Syst Bot Monogr 66:1–643]
Key to Viscaceae
Shrub, glabrous, evergreen. Stem: generally < 20 cm, rounded, green, less often ± red; 2° branches opposite or whorled. Leaf: with blade. Inflorescence: few-flowered cyme, dense, subtended by pair of fused bracts; peduncle 0 or short. Flower: perianth parts generally 4. Staminate flower: anthers several-chambered, cushion-like. Pistillate flower: perianth parts generally deciduous. Fruit: 6–10 mm, spheric, white in California, bird-dispersed; pedicel short, ± straight, or 0.
± 125 species: temperate, tropics, Old World. (Latin: from viscid seed cover) [Hawksworth & Scharpf 1987 Eur J Forest Pathol 16:1–5]
Previous taxon: Phoradendron leucarpum subsp. tomentosum
Next taxon: Viscum album
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Sep 20 2014
Citation for this treatment: [Author of taxon treatment] 2013. Viscum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10282, accessed on Sep 20 2014
Copyright © 2014 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
View elevation by latitude chart
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records