iPedia Free Information Center

Information about Eudicots

Eudicots (Tricolpates)

Scientific classification
Kingdom:Plantae
Division:Angiospermae
(unranked)Eudicots
Clades
Eudicots and Eudicotyledons are terms introduced by Doyle & Hotton (1991) to refer to a group of flowering plants that had been called "tricolpates" or "non-Magnoliid dicots" by previous authors. The term means, literally, "true dicotyledons" as it contains the majority of plants that have been considered dicotyledons and have typical dicotyledonous characters. The term "eudicots" has been widely adopted to refer to one of the two major clades of angiosperms, monocots being the other. The remaining dicots are sometimes referred to as paleodicots but this term has not been widely adopted as it does not refer to a monophyletic group.

Another name for the eudicots is tricolpates, a name which refers to the structure of the pollen. The group has tricolpate pollen, or forms derived from it. These pollen have three or more pores set in furrows called colpi. In contrast, most of the other seed plants (that is the gymnosperms, the monocots and the paleodicots) produce monosulcate pollen, with a single pore set in a differently oriented groove called the sulcus. The name "tricolpates" is preferred by some botanists in order to avoid confusion with the dicots, a non-monophyletic group (Judd & Olmstead 2004).

The name eudicots (plural) is used in the APG system, of 1998, and APG II system, of 2003, for classification of angiosperms. It is applied to a clade, a monophyletic group, which includes most of the (former) dicotyledons.

Subdivision
Within the "eudicots" or "tricolpates" the main groups are the "rosids" (core group with the prefix "eu−") and the "asterids" (core group with the prefix "eu−").


In more detail, with in each clade some unplaced families and orders (unplaced genera are not mentioned): Note : “ + ....” = optional, as a segregate of the previous family.

References and external links

  • Doyle, J. A. & Hotton, C. L. Diversification of early angiosperm pollen in a cladistic context. Pp. 169-195 in Pollen and Spores. Patterns of Diversification (eds Blackmore, S. & Barnes, S. H.) (Clarendon, Oxford, 1991).
  • Walter S. Judd and Richard G. Olmstead (2004). "A survey of tricolpate (eudicot) phylogenetic relationships". American Journal of Botany 91: 1627-1644.  (full text )
  • Eudicots in Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 7, May 2006.
  • Core Eudicots, Tree of Life Web Project
Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
..... Click the link for more information.
Plantae
Haeckel, 1866[1]

Divisions

Green algae
  • Chlorophyta
  • Charophyta
Land plants (embryophytes)
  • Non-vascular land plants (bryophytes)

..... Click the link for more information.
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.
..... Click the link for more information.
Ranunculales
Dumortier

families
See text

Ranunculales is an order of flowering plants. Of necessity it contains the family Ranunculaceae, the buttercup family.
..... Click the link for more information.
Sabiales

Family: Sabiaceae
Blume

Genera

Meliosma
Ophiocaryon
Sabia

Sabiaceae
..... Click the link for more information.
Proteales
Dumort. (1829)

Families
Nelumbonaceae (lotus)
Platanaceae (plane trees)
Proteaceae

Proteales is the botanical name of an order of flowering plants. Such an order has been recognized by almost all taxonomists.
..... Click the link for more information.
Trochodendrales is a botanical name for an order of flowering plants. An order by this name was recognised in the Cronquist system, as comprising the families Tetracentraceae and Trochodendraceae, each consisting of a single species.
..... Click the link for more information.
Buxales is a botanical name at the rank of order.

Under the APG II system, Buxaceae is a family unplaced as to order in the eudicots. This family may optionally include the genus Didymeles
..... Click the link for more information.
Gunnerales
Takht. ex Reveal

families
see text
Gunnerales is an order of flowering plants. In the APG II system (2003) it contains two genera: Gunnera and Myrothamnus.
..... Click the link for more information.
Berberidopsidales Doweld (2001) is a botanical name at the rank of order. This name is only newly published: such an order has been recognized by very few taxonomists. The APG II system, of 2003, merely mentions the possibility of recognizing the order, as comprising the families
..... Click the link for more information.
Dilleniales is the botanical name of an order of flowering plants. The Cronquist system, of 1981, recognized such order and placed it in subclass Dilleniidae. It used the following :
  • order Dilleniales
  • : family Dilleniaceae
  • : family Paeoniaceae

..... Click the link for more information.
Caryophyllales
Perleb

Families
See text.
Synonyms

Centrospermae

Caryophyllales is an order of flowering plants that includes the cacti, carnations, amaranths, ice plants, and most carnivorous plants.
..... Click the link for more information.
Santalales
Dumort.

Families
See text

Santalales is an order of flowering plants, with a cosmopolitan distribution but heavily concentrated in tropical and subtropical regions.
..... Click the link for more information.
Saxifragales
Dumortier

Families

See text.

The Saxifragales are an order of dicotyledon flowering plants. In the APG II classification system, it includes the following families:
  • Family Altingiaceae (sweet gum family)

..... Click the link for more information.

..... Click the link for more information.
rosids refers to a clade, meaning a monophyletic group of plants. This clade is one of the two main groups in the eudicots, the other being the asterids.
..... Click the link for more information.
In the APG II system (2003) for the classification of flowering plants, the name asterids refers to a clade (a monophyletic group).

Most of the taxa belonging to this clade had been referred to the Asteridae in the Cronquist system (1981) and to the Sympetalae in earlier
..... Click the link for more information.
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.
..... Click the link for more information.
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.
..... Click the link for more information.
This article or section needs copy editing for grammar, style, cohesion, tone and/or spelling.
You can assist by [ editing it] now. A how-to guide is available, as is general .
This article has been tagged since July 2007.
..... Click the link for more information.
Monocotyledones

orders
about 10; see text

Monocotyledons or monocots are one of two major groups of flowering plants (angiosperms) that are traditionally recognized, dicotyledons or dicots being the other.
..... Click the link for more information.
Paleodicots (sometimes spelled "palaeodicots") is an informal name used by botanists (Spichiger & Savolainen 1997, Leitch et al. 1998) to refer to a group of flowering plants traditionally considered dicotyledons but excluded from the monophyletic group eudicots in classifications
..... Click the link for more information.
Pollen is a fine to coarse powder consisting of microgametophytes (pollen grains), which produce the male gametes (sperm cells) of seed plants. The pollen grain with its hard coat protects the sperm cells during the process of their movement between the stamens
..... Click the link for more information.
Not to be confused with Poor, Poore, or Pour.


Pore may refer to:

In animal biology and microbiology:
  • Sweat pore, an anatomical structure of the skin of humans (and other mammals) used for secretion of sebum

..... Click the link for more information.
Divisions
  • Pinophyta
  • Cycadophyta
  • Ginkgophyta
  • Gnetophyta
  • Magnoliophyta
The spermatophytes (from the Greek word "Σπερματόφυτα") (also known as phanerogams
..... Click the link for more information.
gymnosperms (Gymnospermae) are a group of spermatophyte seed-bearing plants with ovules on the edge or blade of an open sporophyll, the sporophylls usually arranged in cone-like structures.
..... Click the link for more information.
Monocotyledones

orders
about 10; see text

Monocotyledons or monocots are one of two major groups of flowering plants (angiosperms) that are traditionally recognized, dicotyledons or dicots being the other.
..... Click the link for more information.
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.
..... Click the link for more information.
A modern system of plant taxonomy, the APG system of plant classification was published in 1998 by the Angiosperm Phylogeny Group. The system is unusual in being based, not on total evidence, but on the cladistic analysis of the DNA sequences of three genes, two chloroplast genes
..... Click the link for more information.
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).

..... Click the link for more information.


This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.
Herod_Archelaus


page counter