Caldesia
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.
| Caldesia | |
|---|---|
 | |
| Caldesia parnassifolia | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Alismataceae |
| Genus: | Caldesia Parl. |
| Species | |
|
See text | |
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
- "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org. Retrieved 2017-01-26.
- Altervista Flora Italiana, Mestolaccia minore, Parnassus Leaved Water Plantain, Caldesia parnassifolia
- "Caldesia in Flora of China @ efloras.org". www.efloras.org. Retrieved 2017-01-26.
- 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.
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