Egeria – Chi Egeria

    0
    28
    Egeria - Chi Egeria Egeria genus freshwater aquarium plants 600 x 600
     
    Đánh giá bài này

    Species from this Genus – Các cây trong Chi này:

    Egeria (plant)

    From Wikipedia, the free encyclopedia
     
     
    Egeria
    Egeria densa iceland.JPG  Egeria - Chi Egeria 220px Egeria densa iceland
    Egeria densa foliage
    Scientific classification
    Kingdom: Plantae
    (unranked): Angiosperms
    (unranked): Monocots
    Order: Alismatales
    Family: Hydrocharitaceae
    Subfamily: Anacharioideae
    Genus: Egeria
    Planch.
    Type species
    Egeria densa
    Planch.[1][2]

    Egeria is a genus of three species of aquatic plants in the family Hydrocharitaceae described as a genus in 1849.[3][2] native to warm-temperate South America.[4]

    The genus was formerly included in the related genus Elodea, from which it differs in having the leaves in whorls of four or more, not three, and in having more conspicuous flowers with larger (particularly broader) petals.[5][6]

    Egeria is found in many temperate and subtropical regions throughout the world as an introduced, or “alien”, species, meaning a species that does not originate from the area in which it is found. In many places, particularly in Europe, fast-growing, adaptable plants such as Egeria can spread quickly and cause major damage to native plants and wildlife.[7]

    Species[4]
    1. Egeria densa Planch. – S + SE Brazil, NE Argentina, Paraguay, Uruguay; naturalized in scattered locales in Europe, Africa, China, New Zealand, Hawaii, USA, Mesoamerica, West Indies
    2. Egeria heterostemon S.Koehler & C.P.Bove – Brazil
    3. Egeria najas Planch. – S + SE + E Brazil, NE Argentina, Paraguay, Uruguay

    References

    1. Jump up^ lectotype designated by Oostroom & Reichgelt, Fl. Neerl. 1(6): 27 (1964)
    2. ^ Jump up to:ab “Tropicos | Name – !Egeria Planch.”. www.tropicos.org. Retrieved 2017-01-31.
    3. Jump up^ Planchon, Jules Émile. 1849. Annales des Sciences Naturelles; Botanique, sér. 3 11: 79
    4. ^ Jump up to:ab “World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew”. apps.kew.org. Retrieved 2017-01-31.
    5. Jump up^ Flora of North America: Egeria
    6. Jump up^ Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
    7. Jump up^ Hisock, Peter. (2005). Aquarium Plants (Mini Encyclopedia), p. 146. NY: Barrons. ISBN 0-7641-2989-9.