class Dicotyledonae

Thesaurus

Noun

1.class Dicotyledonae - comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridaeclass Dicotyledones, class Magnoliopsida, Dicotyledonae, Dicotyledones, Magnoliopsidaclass - (biology) a taxonomic group containing one or more ordersliliopsid family, monocot family - family of flowering plants having a single cotyledon (embryonic leaf) in the seeddicot family, magnoliopsid family - family of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germinationdicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germinationAngiospermae, Anthophyta, class Angiospermae, division Anthophyta, division Magnoliophyta, Magnoliophyta - comprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta)dicot, dicotyledon, exogen, magnoliopsid - flowering plant with two cotyledons; the stem grows by deposit on its outsideMagnoliidae, ranalian complex, subclass Magnoliidae - a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorderMyricales, order Myricales - coextensive with the family MyricaceaeAristolochiales, order Aristolochiales - order of plants distinguished by tubular petaloid perianth and inferior ovaryCaryophyllidae, subclass Caryophyllidae - a group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks); Aizoaceae; Amaranthaceae; Batidaceae; Chenopodiaceae; Cactaceae (order Opuntiales); Nyctaginaceae; Phytolaccaceae; corresponds approximately to order Caryophyllales; sometimes classified as a superorderAsteridae, subclass Asteridae - a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorderorder Primulales, Primulales - Primulaceae; Theophrastaceae; Myrsinaceae; and (in some classifications) PlumbaginaceaeRosidae, subclass Rosidae - a group of trees and shrubs and herbs mostly with polypetalous flowers; contains 108 families including Rosaceae; Crassulaceae; Myrtaceae; Melastomaceae; Euphorbiaceae; Umbelliferaeorder Proteales, Proteales - coextensive with the family ProteaceaeCasuarinales, order Casuarinales - order of chiefly Australian trees and shrubs comprising the casuarinas; 1 family: CasuarinaceaeDiapensiales, order Diapensiales - used in some classifications: coextensive with family DiapensiaceaeGentianales, order Gentianales - an order of dicotyledonous plants having gamopetalous flowers; Gentianaceae; Apocynaceae; Asclepiadaceae; Loganiaceae; Oleaceae; SalvadoraceaeOleales, order Oleales - coextensive with the family Oleaceae; in some classifications included in the order GentianalesHamamelidae, subclass Hamamelidae - a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorderJuglandales, order Juglandales - coextensive with the family JuglandaceaeDilleniidae, subclass Dilleniidae - a group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorderorder Urticales, Urticales - an order of dicotyledonous plants including Moraceae and Urticaceae and Ulmaceaeorder Plantaginales, Plantaginales - coextensive with the family Plantaginaceaeorder Polygonales, Polygonales - coextensive with the family Polygonaceae,order Salicales, Salicales - coextensive with the family Salicaceaeorder Sapindales, Sapindales - an order of dicotyledonous plantsEbenales, order Ebenales - trees or shrubs of the families Ebenaceae or Sapotaceae or Styracaceae or Symplocaceaeorder Sarraceniales, Sarraceniales - plants that are variously modified to serve as insect traps: families Sarraceniaceae; Nepenthaceae; Droseraceaeorder Scrophulariales, Scrophulariales - used in some classification systems; often included in the order Polemoniales