Rosopsida (
Batsch
August Johann Georg Karl Batsch (28 October 1761 – 29 September 1802) was a German naturalist. He was a recognised authority on mushrooms, and also described new species of ferns, bryophytes, and seed plants.
Life and career
Batsch was born ...
, 1788) is a
botanical name
A botanical name is a formal scientific name conforming to the '' International Code of Nomenclature for algae, fungi, and plants'' (ICN) and, if it concerns a plant cultigen, the additional cultivar or Group epithets must conform to the ''Intern ...
for a group of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
s recognized at the
rank of class. The name is derived from that of the included family
Rosaceae
Rosaceae (), the rose family, is a medium-sized family of flowering plants that includes 4,828 known species in 91 genera.
The name is derived from the type genus ''Rosa''. Among the most species-rich genera are ''Alchemilla'' (270), ''Sorbus ...
. As used in the
Reveal system it is a subset of the
dicots, a
paraphyletic
In taxonomy (general), taxonomy, a group is paraphyletic if it consists of the group's most recent common ancestor, last common ancestor and most of its descendants, excluding a few Monophyly, monophyletic subgroups. The group is said to be pa ...
group recognized at various ranks in other systems, and includes:
:* subclass
Caryophyllidae
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. Note that this is only a naming difficulty: wh ...
:* subclass
Hamamelididae
Hamamelididae is an obsolete botanical name at the rank of subclass.
Because some hamamelidid members bear aments (''i.e.'', catkins), this subclass has been formerly known as ''Amentiferae''. Based on molecular phylogeny works, Hamamelididae app ...
:* subclass
Dilleniidae
Dillenidae is a botanical name at the rank of subclass.
Circumscription of the subclass will vary with the taxonomic system being used; the only requirement being that it includes the family Dilleniaceae. A well-known system that uses this name i ...
:* subclass
Rosidae
:* subclass
Cornidae
:* subclass
Lamiidae
The order Lamiales (also known as the mint order) are an order in the asterid group of dicotyledonous flowering plants. It includes about 23,810 species, 1,059 genera, and is divided into about 25 families. These families include Acanthaceae, Bi ...
:* subclass
Asteridae
Reveal's use of the group corresponds largely to Cronquist's class
Magnoliopsida (but minus subclass
Magnoliidae) and to the
eudicots
The eudicots, Eudicotidae, or eudicotyledons are a clade of flowering plants mainly characterized by having two seed leaves upon germination. The term derives from Dicotyledons.
Traditionally they were called tricolpates or non-magnoliid dico ...
of the APG II system minus
Ranunculales and some other early-branching groups.
The name has not been used in most of the more influential recent classification systems, such as the
Cronquist system, the
Thorne system A system of plant taxonomy, the Thorne system of plant classification was devised by the American botanist Robert F. Thorne (1920–2015) in 1968, and he continued to issue revisions over many years (1968–2007).
Some versions of the system are a ...
, the
Takhtajan system or the
APG II
The APG II system (Angiosperm Phylogeny Group II system) of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Gr ...
system.
{{Taxonbar, from=Q1372246
Plant classes
Historically recognized angiosperm taxa
Rosopsida
