Biology:Caldesia

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Short description: Genus of aquatic plants

Caldesia
Caldesia parnassiifolia3.jpg
Caldesia parnassifolia
Scientific classification e
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: 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.

Taxonomy

The genus name of Caldesia is in honour of Ludovico (Luigi) Caldesi (1821 - 1884), an Italian politician and botanist.[5]

The genus was circumscribed by Filippo Parlatore in Fl. Ital. Vol.3 on page 598 in 1860.

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. (synonym: Caldesia reniformis (D.Don) Makino) - widespread across Europe, Asia, Africa, Queensland

References

  1. "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew" (in en-GB). http://apps.kew.org/wcsp/namedetail.do?name_id=301593. 
  2. Altervista Flora Italiana, Mestolaccia minore, Parnassus Leaved Water Plantain, Caldesia parnassifolia
  3. "Caldesia in Flora of China @ efloras.org". http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=105055. 
  4. 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. 
  5. Burkhardt, Lotte (2022) (in German) (pdf). Eine Enzyklopädie zu eponymischen Pflanzennamen. Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. https://doi.org/10.3372/epolist2022. Retrieved January 27, 2022. 

Wikidata ☰ Q2673201 entry