“Caldesia”的意思、由来-开放百科全书

词条

Caldesia

释义

Description
Selected species
References

{{automatic taxobox
|image = Caldesia parnassiifolia3.jpg
|image_caption = Caldesia parnassifolia
|taxon = Caldesia
|authority = Parl.
|subdivision_ranks = Species
|subdivision = 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. ^{{Cite web|url=http://apps.kew.org/wcsp/namedetail.do?name_id=301593|title=World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew|website=apps.kew.org|language=en-GB|access-date=2017-01-26}}
2. ^Altervista Flora Italiana, Mestolaccia minore, Parnassus Leaved Water Plantain, Caldesia parnassifolia
3. ^{{Cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=105055|title=Caldesia in Flora of China @ efloras.org|website=www.efloras.org|access-date=2017-01-26}}
4. ^{{cite journal | last=Haggard | first=Kristina K. |author2=Tiffney, Bruce H. | year=1997 | title=The Flora of the Early Miocene Brandon Lignite, Vermont, USA. VIII. Caldesia (Alismataceae) | journal=American Journal of Botany | volume=84 | issue=2 | pages=239–252 | doi=10.2307/2446086 | publisher=American Journal of Botany, Vol. 84, No. 2 | jstor=2446086 }}

3 : Alismataceae|Alismataceae genera|Freshwater plants

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