Information AboutEudicots |
| CATEGORIES ABOUT EUDICOTS | |
| plant taxonomy | |
| botanical nomenclatureplant taxonomy | |
| botanical nomenclature | |
| SHOPPER'S DELIGHT | |
In the APG and APG II System for classification of Angiosperms , the names eudicots or '''tricolpates''' are applied to a Clade , a Monophyletic group. This clade includes most of the (former) Dicotyledon s. The remaining, and more primitive, (former) dicots are sometimes referred to as ''' Palaeodicot s''' ("palaeo−" = old) even though this is a Paraphyletic group. The name "eudicots" is formed by adding the botanical prefix "eu−" (= "true") to "dicots". The eudicots have those characters that many older textbooks associate with dicots. Since "dicots" is short for "dicotyledons" it is tempting to jump to the conclusion that "eudicots" is short for "eudicotyledons". However, the name is "eudicots". The name ''tricolpates'' refers to the structure of the Pollen . The group has tricolpate pollen, or forms derived from it. These pollen have three or more Pore s set in furrows called colpi. In contrast, most of the other Seed Plants (that is the Gymnosperms , the Monocots and the palaeodicots) produce monosulcate pollen, with a single pore set in a differently oriented groove called the sulcus. The name "tricolpates" is preferred under the PhyloCode . 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 |