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Information about Rosopsida

Rosopsida Batsch 1788 is a botanical name for a group of flowering plants recognized at the rank of class. The name is derived from that of the included family Rosaceae. The name has not been used in most of the more influential recent classification systems, such as the Cronquist system, the Thorne system, the Takhtajan system or the APG II system. As circumscribed in the Reveal system it is a subset of the dicots, a paraphyletic group recognized at various ranks in other systems, and includes: Reveal's circumscription of the group corresponds largely to Cronquist's class Magnoliopsida (but minus subclass Magnoliidae) and to the eudicots of the APG II system minus Ranunculales and some other early-branching groups.
Dr August Johann Georg Karl Batsch (28 October 1761 - 29 September 1802) was a German naturalist.

Background

Batsch was born in Jena, Germany, to George Lorenz Bratsch and Ernestine (nee Franke) Bratsch. He studied at the city school, and then had private tuition.
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botanical name is a formal scientific name conforming to the International Code of Botanical Nomenclature (ICBN). The purpose of formal name is to have a single name that is accepted and used worldwide for a particular plant or plant group.
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Magnoliophyta

Classes

Magnoliopsida - Dicots
Liliopsida - Monocots

The flowering plants or angiosperms are the most widespread group of land plants. The flowering plants and the gymnosperms comprise the two extant groups of seed plants.
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In botanical nomenclature, a taxon is usually assigned to a rank in a hierarchy. The basic rank is that of species, and if an organism is named it most often will receive a species name.
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Rosaceae
Juss.

Global distribution of Rosaceae


Subfamilies

Rosoideae
Spiraeoideae
Maloideae
Amygdaloideae or Prunoideae

The Rosaceae
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A system of plant taxonomy, the Cronquist system is a scheme for the classification of flowering plants (or angiosperms). This system was developed by Arthur Cronquist (1919-1992) in his texts An Integrated System of Classification of Flowering Plants (1981) and
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A system of plant taxonomy, the Takhtajan system of plant classification was published by Armen Takhtajan, in several versions from the 1950's onwards. It is usually compared to the Cronquist system. Key publications:
  • A.

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A modern system of plant taxonomy, the APG II system of plant classification was published in 2003 by the Angiosperm Phylogeny Group, APG, in
Angiosperm Phylogeny Group (2003).

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A modern system of plant taxonomy, the Reveal system of plant classification was drawn up by the botanist J.L. Reveal (1941- ), professor emeritus at the Norton Brown Herbarium, Maryland (see his cv ).

The last update of the system was made in 1999.
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Magnoliopsida
Brongniart

Orders

See text.
Dicotyledons, or "dicots", is a name for a group of flowering plants whose seed typically contains two embryonic leaves or cotyledons.
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In phylogenetics, a group of organisms is said to be paraphyletic (Greek para = near and phyle = race) if the group contains its most recent common ancestor, but does not contain all the descendants of that ancestor.
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Caryophyllidae is a botanical name at the rank of subclass. At the moment there is no complete consensus about what orders it includes, except that it presumably contains the order Caryophyllales.
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Hamamelididae is a botanical name at the rank of subclass. A well-known system that used this name is the Cronquist system, although in the disallowed spelling Hamamelidae.
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Dillenidae is a botanical name at the rank of subclass. of the subclass will vary with the being used; the only requirement being that it includes the family Dilleniaceae. A well-known system that uses this name is the Cronquist system, and in the original 1981, version of the
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Rosidae is a botanical name at the rank of subclass. of the subclass will vary with the being used; the only requirement being that it includes the family Rosaceae. A well-known system that uses this name is the Cronquist system, and in the 1981, original, version of this system
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Lamiales
Bromhead

Families

See text

The order Lamiales is a taxon in the asterid group of dicotyledonous flowering plants. Lamiales formerly had a restricted circumscription (e.g.
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Asteridae is a botanical name at the rank of subclass. of the subclass has varied with the being used but by definition always includes the family Asteraceae (Compositae).
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Magnoliopsida

Magnoliopsida is the botanical name for a class of flowering plants. By definition the class will include the family Magnoliaceae, but its can otherwise vary, being more inclusive or less inclusive depending upon the classification system being
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Magnoliidae is a botanical name of a subclass. The of the subclass will vary with the being used (there are many such systems). The only requirement is that it must include the family Magnoliaceae (Art 16 of the ICBN).
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Eudicots

Clades
  • Ranunculales
  • Sabiales
  • Proteales
  • Trochodendrales
  • Buxales
  • Gunnerales
  • Core eudicots:
  • Berberidopsidales

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Ranunculales
Dumortier

families
See text

Ranunculales is an order of flowering plants. Of necessity it contains the family Ranunculaceae, the buttercup family.
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