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Encyclopedia > Alismatales
Alismatids

Ivy Duckweed (Lemna trisulca)
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Liliopsida
Order: Alismatales Dumort. (1829)
Families

Alismataceae
Aponogetonaceae
Araceae
Butomaceae
Cymodoceaceae
Hydrocharitaceae
Juncaginaceae
Limnocharitaceae
Posidoniaceae
Potamogetonaceae
Ruppiaceae
Scheuchzeriaceae
Tofieldiaceae
Zosteraceae Wikipedia does not have an article with this exact name. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Green algae Land plants (embryophytes) Non-vascular embryophytes Hepatophyta - liverworts Anthocerophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Seedless vascular plants Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also angiosperms or Magnoliophyta) are one of the major groups of modern plants, comprising those that produce seeds in specialized reproductive organs called flowers, where the ovulary or carpel is enclosed. ... Orders Base Monocots: Acorus Alismatales Asparagales Dioscoreales Liliales Pandanales Family Petrosaviaceae Commelinids: Arecales Commelinales Poales Zingiberales Family Dasypogonaceae Monocotyledons or monocots are a group of flowering plants usually ranked as a class and once called the Monocotyledoneae. ... 1829 was a common year starting on Thursday (see link for calendar). ... Genera Alisma Echinodorus Hydrocleys Sagittaria The Alismataceae are a family of aquatic plant commonly called the water-plantains. ... Genera See text The arums comprise the Family Araceae (including the numerous aroids subfamily): monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. ... Genera Apalanthe Appertiella Blyxa Egeria Elodea Enhalus Halophila Hydrilla Hydrocharis Lagarosiphon Limnobium Maidenia Nechamandra Ottelia Stratiotes Thalassia Vallisneria Hydrocharitaceae is a family of that includes a number of species of aquatic plant, broadly they are called tape-grasses. ... Posidoniaceae is a family of aquatic plants conatining a single genus, Posidonia. ... Genera Potamogeton Groenlandia Ruppia Potamogetonaceae is a family of aquatic plants. ... Genera Heterozostera Phyllospadix Zostera Zosteraceae is a family of aquatic grass. ...

The order Alismatales contains the alismatids, a group of monocotyledons (class Liliopsida). The order contains about 165 genera in 14 families, with cosmopolitic distribution. Most families are comprised of herbaceous non-succulent plants. These plants are commonly found in aquatic environmments. The flowers are usually arranged in inflorescences, and the mature seeds lack endosperm. Orders Base Monocots: Acorus Alismatales Asparagales Dioscoreales Liliales Pandanales Family Petrosaviaceae Commelinids: Arecales Commelinales Poales Zingiberales Family Dasypogonaceae Monocotyledons or monocots are a group of flowering plants usually ranked as a class and once called the Monocotyledoneae. ... Orders Base Monocots: Acorus Alismatales Asparagales Dioscoreales Liliales Pandanales Family Petrosaviaceae Commelinids: Arecales Commelinales Poales Zingiberales Family Dasypogonaceae Monocotyledons or monocots are a group of flowering plants usually ranked as a class and once called the Monocotyledoneae. ... A herb (pronounced urb in American English and hurb in British English) is a plant grown for culinary or medicinal value. ... Succulent plants, or succulents, are plants that store water in their enlarged fleshy leaves, stems, or roots. ... Wildflowers A flower is the reproductive organ of those plants classified as angiosperms (flowering plants; Division Magnoliophyta). ... An inflorescence is a group or cluster of flowers on a branch of a plant. ... Endosperm is a triploid tissue (containing three sets of chromosomes) found in the seeds of flowering plants. ...


Traditionally, the order Alismatales was restricted to contain just three families (Alismataceae, Butomaceae and Limnocharitaceae). The other families were not considered as alismatids, and were assigned to various distinct orders, but this approach produced polyphyletic groups, and so the whole group of families is now placed into a single order. In biology, a taxon is polyphyletic if it is descended from more than one root form (in Greek poly = many and phyletic = racial). ...


The Petrosaviaceae have been placed in this order, but their actual affinity is not so clear. The alismatids have been considered the sister group of the Arales and the latter are now included here. As a result of this merger, the Araceae became the most important family in the order, accounting alone for over 2000 species in about 100 genera. The rest of families contain together just about 500 species. Genera Japonolirion Petrosavia Petrosaviaceae are family of flowering plants. ... The Arales, or aroids, used to be an order of monocot flowers. ...


See also

Johnsons seagrass in Florida coast Seagrass (or sea-grass in British English) is a term that refers to flowering plants from two plant families (Potamogetonaceae and Hydrocharitacea) that grow in the marine environment. ...

References

  • B. C. J. du Mortier (1829). Analyse des Familles de Plantes : avec l'indication des principaux genres qui s'y rattachent, 54. Imprimerie de J. Casterman, Tournay.
  • W. S. Judd, C. S. Campbell, E. A. Kellogg, P. F. Stevens, M. J. Donoghue (2002). Plant Systematics: A Phylogenetic Approach, 2nd edition. pp. 242-247 (Alismatales). Sinauer Associates, Sunderland, Massachusets. ISBN 0878934030.

 
 

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