Overview
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Endangered |
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Description
Family Euphorbiaceae
The Euphorbiaceae are mostly monoecious herbs, shrubs , and trees , sometimes succulent and cactus-like, comprising one of the largest families of plants with about 300 genera and 7,500 species that are further characterized by the frequent occurrence of milky sap . The leaves are mostly alternate but may be opposite or whorled and they are simple , or compound , or sometimes highly reduced. Stipules are generally present but may be reduced to hairs , glands or spines. The flowers are unisexual and usually actinomorphic . They may be highly reduced by suppression of parts, in the extreme form consisting of a naked stamen as a male flower and a naked pistil as a female flower. A specialized type of miniature inflorescence called a cyathium occurs in about 1,500 species comprising the genera Euphorbia and Chamaesyce. The cyathium consists of a single naked pistillate flower surrounded by cymes of naked staminate flowers, each consisting of a single stamen. These flowers are all enclosed in a cup-like involucre that typically is provided with peripheral nectaries and petaloid appendages such that the whole aggregation closely resembles a single flower. In other members of the family the flowers and inflorescences are more ordinary in appearance , with male and female flowers typically bearing a 5-merous calyx and corolla of distinct segments, although the corolla is sometimes absent. In these forms the androecium most commonly consists of 5, 10 or sometimes numerous distinct or monadelphous stamens. The gynoecium of female flowers consists of a single compound pistil of typically 3 carpels, an equal number of styles or primary style branches, and a superior ovary with typically 3 locules, each bearing 1 or 2 collateral , axile-apical pendulous ovules. The fruit is usually a capsular schizocarp. -- Gerald Carr.
Taxonomy
- Domain:
Eukaryota
(
)
- Whittaker & Margulis,1978
- eukaryotes
- Kingdom:
Plantae
()
- Haeckel, 1866
- Plants
- Subkingdom:
Viridaeplantae
()
- Cavalier-Smith, 1981
- Phylum:
Magnoliophyta
()
- Sinnott, 1935 Ex Cavalier-Smith, 1998
- Flowering Plants
- Subphylum:
Euphyllophytina
()
- Infraphylum:
Radiatopses
()
- Kenrick & Crane, 1997
- Class:
Magnoliopsida
()
- Brongniart, 1843
- Dicotyledons
- Subclass:
Dilleniidae
()
- Takhtajan, 1967
- Superorder:
Euphorbianae
()
- Takhtajan Ex Reveal, 1992
- Order:
Euphorbiales
()
- Lindley, 1833
- Family:
Euphorbiaceae
()
- J.f. Gmelin, 1777, Nom. Cons.
- Spurge Family
- Genus:
Dendrocousinsia
()
- Specific epithet:
fasciculata
- Millsp.
- Botanical name: - Dendrocousinsia fasciculata Millsp.
- Specific epithet:
fasciculata
- Millsp.
- Genus:
Dendrocousinsia
(
- Family:
Euphorbiaceae
(
- Order:
Euphorbiales
(
- Superorder:
Euphorbianae
(
- Subclass:
Dilleniidae
(
- Class:
Magnoliopsida
(
- Infraphylum:
Radiatopses
(
- Subphylum:
Euphyllophytina
(
- Phylum:
Magnoliophyta
(
- Subkingdom:
Viridaeplantae
(
- Kingdom:
Plantae
(
Unambiguous Synonyms
- Sebastiania fasciculata (Millsp.) Pax & K. Hoffm.
Notes
Name Status: Accepted Name . Latest taxonomic scrutiny: Govaerts R., 11-Nov-2003
Similar Species
Members of the genus Dendrocousinsia
ZipcodeZoo has pages for 3 species, subspecies, varieties, forms, and cultivars in this genus:
D. alpina · D. fasciculata · D. spicata
More Info
- Search for Pictures: images.google.com
- Search for Scholarly Articles: Google Scholar
- Search using Scientific Name and Vernacular Names: All the Web | AltaVista Canada | AltaVista | Excite | Google | HotBot | Lycos
- Search using Specialized Databases: GenBank | Medline | Scirus | CISTI/CAL | Agricola Periodicals | Agricola Books
Further Reading
- Flora of Jamaica, containing descriptions of the flowering plants known from the island, by William Fawcett and Alfred Barton Rendle. London.Printed by order of the Trustees of the British Museum, 1910- ENG url p. 323.
- Kelly, D.L. 1988. The threatened flowering plants of Jamaica. Biological Conservation 46(3): 201-216.
- Kelly, D.L. 1994. Systematic list of threatened flowering plant species in the Jamaican flora.
- The Nature Conservancy. 1996. Natural Heritage Central Database. (Status and distribution data on Latin American plants, developed in collaboration with Latin American Conservation Data Centers and Missouri Botanical Garden).
Notes
Contributors
- Bisby, F.A., Y.R. Roskov, M.A. Ruggiero, T.M. Orrell, L.E. Paglinawan, P.W. Brewer, N. Bailly, J. van Hertum, eds (2007). Species 2000 & ITIS Catalogue of Life: 2007 Annual Checklist. Species 2000: Reading, U.K.
- World Checklist of Selected Plant FamiliesFeb 2, 2006.
- World Conservation Monitoring Centre 1998. Sebastiania fasciculata. In: IUCN 2006. 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 20 October 2006.
Identifiers
- Biodiversity Heritage Library NamebankID: 3454364
- Catalogue of Life Accepted Name Code: Kew-59986
- Global Biodiversity Information Facility Taxonkey: 14255094
- Globally Unique Identifier: urn:lsid:ipni.org:names:344275-1
- Zipcode Zoo Species Identifier: 1070306
