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Magnoliopsida
*** Shopping-Tip: Magnoliopsida
'''''Magnoliopsida''''' is the
botanical name for a class: this name is formed by replacing the termination ''-aceae'' in the name ''Magnoliaceae'' by the termination ''-opsida'' (Art 16 of the ''
ICBN''). The class will necessarily include the family ''
Magnoliaceae'', but it is not otherwise fixed. The circumscription of this class will vary with the taxonomic system that is being used.
Image:P4050021.jpg thumb|right|300px|Magnolia flowers
Cronquist and Takhtajan systems
In the
Takhtajan system and the
Cronquist system the name is used for the group known as '''
dicotyledons'''.
''Magnoliopsida'' in the Takhtajan system
The
Takhtajan system used this internal taxonomy:
* class ''Magnoliopsida'' [= dicotyledons]
*: subclass ''
Magnoliidae''
*: subclass ''
Nymphaeidae''
*: subclass ''
Nelumbonidae''
*: subclass ''
Ranunculidae''
*: subclass ''
Caryophyllidae''
*: subclass ''
Hamamelididae''
*: subclass ''
Dilleniidae''
*: subclass ''
Rosidae''
*: subclass ''
Cornidae''
*: subclass ''
Asteridae''
*: subclass ''
Lamiidae''
''Magnoliopsida'' in the Cronquist system
The
Cronquist system used this internal taxonomy (in the 1981 version):
* class ''Magnoliopsida'' [= dicotyledons]
*: subclass ''
Magnoliidae''
*: subclass ''
Hamamelidae''
*: subclass ''
Caryophyllidae''
*: subclass ''
Dilleniidae''
*: subclass ''
Rosidae''
*: subclass ''
Asteridae''
Dahlgren and Thorne systems
The
Dahlgren system and the
Thorne system (1992) use the name ''Magnoliopsida'' for the '''
flowering plants''' (angiosperms). However, the Cronquist system has been very popular and there have been many versions of the system published. In some of these Cronquist-based systems the name ''Magnoliopsida'' (at the rank of class) refers to the
flowering plants (the angiosperms).
* class ''Magnoliopsida'' [= angiosperms]
*: subclass ''
Magnoliidae'' [= dicotyledons]
*: subclass ''
Liliidae'' [= monocotyledons]
Reveal system
The
Reveal system uses the name ''Magnoliopsida'' for a group of the primitive dicotyledons, corresponding to about half of the plants in the '''
magnoliids''':
* class 1. ''Magnoliopsida''
*: superorder 1. ''
Magnolianae''
*: superorder 2. ''
Lauranae''
APG systems
In the
APG system APG and
APG II systems botanical names are used only at the
rank (botany) rank of order and below. Above the rank of order, these systems use their own names, such as
angiosperms,
eudicots,
monocots,
rosids, etc. These names refer to
clades (unranked). This class ''Magnoliopsida'' is not defined. Note that the idea that dicotyledons could be a taxonomic unit and get a formal name is rejected by the APG: the dicots are
paraphyletic.
Category:Plant taxonomy
ca:Magnoliopsida
es:Magnoliopsida
it:Magnoliopsida
{{sisterlinkswp|Category:Magnoliopsida}}
{{commonscat|Magnoliopsida}}
Members of the plant class '''
Magnoliopsida''' are dicotyledons or dicots. These are
flowering plants whose seeds contain two embryonic leaves or cotyledons. Flowering plants that are not dicotyledonous are
monocotyledonous, having one embryonic leaf, and are categorized as
Liliopsida.
Category:Magnoliophyta
ca:Categoria:Magnoliopsida
eo:Kategorio:Magnoliopsidoj
fr:Catégorie:Dicotylédone
ko:분류:�떡잎�물
pt:Categoria:Magnoliopsida
ru:КатегориÑ?:Двудольные
sv:Kategori:Eudicotyledonae
zh:category:é›™å?葉æ¤?物綱
*** Shopping-Tip: Magnoliopsida
