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单词 plant kingdom
释义

plant kingdom


plant kingdom

n. A main classification of living organisms that includes all plants.

plant kingdom

n (Botany) a category of living organisms comprising all plants but excluding the algae, fungi, and bacteria. Compare animal kingdom, mineral kingdom

Plan•tae

(ˈplæn ti)

n. (used with a pl. v.) the taxonomic kingdom comprising all plants. [< New Latin, Latin: pl. of planta plant]

plant kingdom

The category of living organisms that includes all plants. The scientific name of this kingdom is Plantae. Also called vegetable kingdom. See Table at taxonomy.
Thesaurus
Noun1.plant kingdom - (botany) the taxonomic kingdom comprising all living or extinct plantsplant kingdom - (botany) the taxonomic kingdom comprising all living or extinct plantskingdom Plantae, Plantaeplant life, flora, plant - (botany) a living organism lacking the power of locomotionphytology, botany - the branch of biology that studies plantskingdom - the highest taxonomic group into which organisms are grouped; one of five biological categories: Monera or Protoctista or Plantae or Fungi or AnimaliaThallophyta - used only in former classifications: comprising what is now considered a heterogeneous assemblage of flowerless and seedless organisms: algae; bacteria; fungi; lichensdivision Tracheophyta, Tracheophyta - in former classifications: comprising plants with a vascular system including ferns and fern allies as well as seed plantsplant order - the order of plantsBryophyta, division Bryophyta - a division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alternation of generations between gamete-bearing forms and spore-bearing forms; comprises true mosses (Bryopsida) and liverworts (Hepaticopsida) and hornworts (Anthoceropsida)division Pteridophyta, Pteridophyta - containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophytadivision Spermatophyta, Spermatophyta - seed plants; comprises the Angiospermae (or Magnoliophyta) and Gymnospermae (or Gymnospermophyta); in some classification systems Spermatophyta is coordinate with Pteridophyta (spore producing plants having vascular tissue and roots) and Bryophyta (spore producing plants lacking vascular tissue and roots)Phanerogamae - in former classification systems: one of two major plant divisions, including all seed-bearing plants; superseded by the division SpermatophytaCryptogamia - in former classification systems: one of two major plant divisions, including all plants that do not bear seeds: ferns, mosses, algae, fungiplant family - a family of plantsplant genus - a genus of plantsLycophyta - used in some classifications for the class Lycopsida: club mosses
Translations
Pflanzenreichplanteriket

plant kingdom


Plant kingdom

The worldwide array of plant life, including plants that have roots in the soil, plants that live on or within other plants and animals, plants that float on or swim in water, and plants that are carried in the air. Fungi used to be included in the plant kindom because they looked more like plants than animals and did not move about. It is now known that fungi are probably closer to animals in terms of their evolutionary relationships. Also once included in plants were the “blue-green algae,” which are now clearly seen to be bacteria, although they are photosynthetic (and presumably the group of organisms from which the chloroplasts present in true plants were derived). The advent of modern methods of phylogenetic DNA analysis has allowed such distinctions, but even so, what remains of the plantlike organisms is still remarkably divergent and difficult to classify.

Plants range in size from unicellular algae to giant redwoods. Some plants complete their life cycles in a matter of hours, whereas the bristlecone pines are known to be over 4000 years old. Plants collectively are among the most poorly understood of all forms of life, with even their most basic functions still inadequately known, including how they sense gravity and protect themselves from infection by bacteria, viruses, and fungi. Furthermore, new species are being recorded every year.

Within the land plants, a great deal of progress has been made in sorting out phylogenetic (evolutionary) relationships of extant taxa based on DNA studies, and the system of classification listed below includes these changes. The angiosperms or flowering plants (Division Magnoliophyta) have recently been reclassified based on phylogenetic studies of DNA sequences. Within the angiosperms, several informal names are indicated in parentheses; these names may at some future point be formalized, but for the present they are indicated in lowercase letters because they have not been formally recognized under the Code of Botanical Nomenclature.

It is known that the bryophytes (Division Bryophyta) are not closely related to each other, but which of the three major groups is closest to the other land plants is not yet clear. Among the extant vascular plants, Lycophyta are the sister group to all the rest, with all of the fernlike groups forming a single monophyletic (natural) group, which is reflected here in the classification by putting them all under Polypodiophyta. This group is the sister to the extant seed plants, within which all gymnosperms form a group that is sister to the angiosperms. Therefore, if Division is taken as the highest category within Embryobionta (the embryo-forming plants), then the following scheme would reflect the present state of knowledge of relationships (an asterisk indicates that a group is known only from fossils).

See Deoxyribonucleic acid (DNA), Plant evolution, Plant phylogeny, Plant taxonomy

plant kingdom

[′plant ‚kiŋ·dəm] (botany) The worldwide array of plant life constituting a major division of living organisms.

plant kingdom


plant kingdom

a category of living organisms comprising all members of the kingdom Plantae. Plants lack locomotive movement, possess cell walls and have no obvious nervous or sensory organs. Most plant groups possess members with
Super-kingdom Procaryota
 Kingdom Monera
 Division Cyanophyta Blue-green algae
 Division Bacteria (=Schizomycophyta) Bacteria
Super-kingdom Eucaryota
 Kingdom Mycota
 Division Myxomycota Slime moulds
 Division Eumycota True fungi
 Subdivision Mastigomycotina (=Phycomycetes [Part])
 Subdivision Zygomycotina (=Phycomycetes [Part])
 Subdivision Ascomycotina (=Ascomycetes [Part])
 Subdivision Basidiomycotina (=Basidomycetes)
 Subdivision Deuteromycotina Fungi imperfecti (including part of Ascomycetes)
Kingdom Plantae (=Phyta)
 Division Chlorophyta Green algae
 Division Euglenophyta (included in Flagellata by zoologists)
 Division Charophyta Stoneworts and Brittleworts
 Division Phaeophyta Brown algae
 Division Chrysophyta Diatoms, Yellow-green and golden-brown algae
 Division Pyrrophyta Fire algae
 Division Rhodophyta Red algae
Division Bryophyta
 Class Hepaticae Liverworts
 Class Anthocerotae Hornworts
 Class Musci Mosses
Division Tracheophyta
 Subdivision Psilopsida Whisk fern. etc.
 Subdivision Lycopsida Club mosses
 Subdivision Sphenopsida Horsetails
 Subdivision Pteropsida
 Class Filicinae Ferns
 Class Gymnospermae Conifers
 Class Angiospermae Flowering plants
 Subclass Dicotyledonae
 Subclass Monocotyledonae
FinancialSeeplant

plant kingdom


Related to plant kingdom: kingdom Plantae, Fungi kingdom
  • noun

Synonyms for plant kingdom

noun (botany) the taxonomic kingdom comprising all living or extinct plants

Synonyms

  • kingdom Plantae
  • Plantae

Related Words

  • plant life
  • flora
  • plant
  • phytology
  • botany
  • kingdom
  • Thallophyta
  • division Tracheophyta
  • Tracheophyta
  • plant order
  • Bryophyta
  • division Bryophyta
  • division Pteridophyta
  • Pteridophyta
  • division Spermatophyta
  • Spermatophyta
  • Phanerogamae
  • Cryptogamia
  • plant family
  • plant genus
  • Lycophyta
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更新时间:2024/12/23 5:03:18