Caldesia – Chi Caldesia

    0
    34
    Caldesia - Chi Caldesia Caldesia genus freshwater aquarium plants 600 x 600
     
    Caldesia – Chi Caldesia
    5 trên tổng 3 bình chọn

    Species from this Genus – Các cây trong Chi này:

    Caldesia

    From Wikipedia, the free encyclopedia
     
     
    Caldesia
    Caldesia parnassiifolia3.jpg  Caldesia - Chi Caldesia 220px Caldesia parnassiifolia3
    C. parnassifolia
    Scientific classification
    Kingdom: Plantae
    (unranked): Angiosperms
    (unranked): Monocots
    Order: Alismatales
    Family: Alismataceae
    Genus: Caldesia
    Parl.
    Species
    see text

    Caldesia is a genus of aquatic plants. It includes three living species widespread across Europe, Asia, Africa and Australia.[1][2][3] The genus “has an extensive Oligocene through Pleistocene fossil record in Eurasia,”[4] and has been found in fossil strata of the United States (Idaho and Vermont) as well. Ten fossil species have been described for the genus.

    Description

    Leaves all basal, floating or aerial, ovate to elliptical, cordate or subcordate. Flowers hermaphrodite, in racemes or panicles. Stamens 6(-11). Carpels few or numerous in a single whorl, free, each with 1 ovule; styles subventral. Fruitlets drupaceous, with woody endocarp and spongy exocarp, swollen, with a short subventral beak, smooth or with tubercles or spines.

    Selected species

    • Caldesia brandoniana †
    • Caldesia grandis Sam. – Assam, Bangladesh, southern China
    • Caldesia oligococca (F.Muell.) Buchanan
      • Caldesia oligococca var. acanthocarpa (F.Muell.) Hartog – Queensland, Northern Territory (of Australia)
      • Caldesia oligococca var. echinata Hartog – western Africa from Mali to Chad, plus India, Pakistan, Sri Lanka, Thailand, Vietnam, Java
      • Caldesia oligococca var. oligococca – Timor, Queensland
    • Caldesia parnassifolia (L.) Parl. – widespread across Europe, Asia, Africa, Queensland
    • Caldesia reniformis (D.Don) Makino – synonym of Caldesia parnassifolia

    References

    1. Jump up^ “World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew”. apps.kew.org. Retrieved 2017-01-26.
    2. Jump up^ Altervista Flora Italiana, Mestolaccia minore, Parnassus Leaved Water Plantain, Caldesia parnassifolia
    3. Jump up^ “Caldesia in Flora of China @ efloras.org”. www.efloras.org. Retrieved 2017-01-26.
    4. Jump up^ Haggard, Kristina K.; Tiffney, Bruce H. (1997). “The Flora of the Early Miocene Brandon Lignite, Vermont, USA. VIII. Caldesia (Alismataceae)”. American Journal of Botany. American Journal of Botany, Vol. 84, No. 2. 84 (2): 239–252. doi:10.2307/2446086. JSTOR 2446086.