Euphorbiales: Difference between revisions
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[[Image:Euphorbia milii.jpg|thumb|''Euphorba millii'']] |
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{{Taxobox |
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'''''Euphorbiales''''' is the [[botanical name]] of an order of [[flowering plants]]. Such an order has been recognized by relatively few taxonomists. |
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| color = lightgreen |
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| name = Malpighiales |
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| regnum = [[Plant]]ae |
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| divisio = [[Flowering plant|Magnoliophyta]] |
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| classis = [[Magnoliopsida]] |
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| ordo = '''Malpighiales''' |
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| subdivision_ranks = Families |
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| subdivision = |
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See text. |
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}} |
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In the [[APG II system]] (2003) the plants involved are placed in order ''[[Malpighiales]]''. A well known system that did recognize such an order was the [[Cronquist system]] (1981) which placed the order in subclass ''[[Rosidae]]'' and used this circumscription: |
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'''Euphorbiales''' was the former name of an [[order (biology)|order]] of [[flowering plant]]s. |
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*order ''Euphorbiales'' |
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Newer classification systems, including the [[Angiosperm Phylogeny Group| APG II]] system, merge order Euphorbiales into order [[Malpighiales]]. |
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*: family ''[[Buxaceae]]'' |
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*: family ''[[Simmondsiaceae]]'' |
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*: family ''[[Euphorbiaceae]]'' |
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*: family ''[[Pandaceae]]'' |
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This usage of family ''Euphorbiaceae'' is in the wide sense: since that time the family has been split. |
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== Families, formerly comprised in Euphorbiales == |
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* [[Buxaceae]] (boxwood) - 2 genera |
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* [[Daphniphyllaceae]] - 1 genus, Daphniphyllum, 35 species. The family is empty in ITIS. [http://delta-intkey.com/angio/www/daphniph.htm Watson and Dallwitz] place it in [[Saxifragales]] |
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* [[Euphorbiaceae]] (spurge) - 71 genera, including [[cassava]], [[castor bean]] and [[Poinsettia]] |
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* [[Pandaceae]] - 4 genera, 28 species. This family is empty in ITIS. See [http://delta-intkey.com/angio/www/pandacea.htm Watson and Dallwitz] for more information. |
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* [[Simmondsiaceae]] (goatnut, jojoba) - 1 genus |
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Family [[Aextoxicaceae]], which is assigned to order Euphorbiales in some older systems, is assigned to order [[Berberidopsidales]] in newer systems, including that of the APG. |
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<!-- [[category:Rosidae]] --> |
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== Ethnobotany == |
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Some of these species are highly toxic. |
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In the [[Mediterranean]] area, some use euphorbia's leaves for fishing in rivers: leaves release their toxic substance, that goes immediately in solution with water, and when the fish is reached by it its swim-bladder swells until it explodes, killing the fish. The dead fish comes then to the surface and is easily collectible. This practice is however extremely unsafe, given that the toxic element remains in the tissues of the fish, so it would be dangerous to eat it. |
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== References == |
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* http://www.itis.usda.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=28020 |
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as of 2002-05-30 |
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* [http://delta-intkey.com/angio/ L. Watson and M.J. Dallwitz (1992 onwards). The Families of Flowering Plants: Descriptions, Illustrations, Identification, Information Retrieval.] |
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Revision as of 15:35, 25 May 2006
Euphorbiales is the botanical name of an order of flowering plants. Such an order has been recognized by relatively few taxonomists.
In the APG II system (2003) the plants involved are placed in order Malpighiales. A well known system that did recognize such an order was the Cronquist system (1981) which placed the order in subclass Rosidae and used this circumscription:
- order Euphorbiales
- family Buxaceae
- family Simmondsiaceae
- family Euphorbiaceae
- family Pandaceae
This usage of family Euphorbiaceae is in the wide sense: since that time the family has been split.