Caldesia
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| Caldesia | |
|---|---|
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| C. parnassifolia | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| Order: | Alismatales |
| Family: | Alismataceae |
| Genus: | Caldesia Parl. |
| Species | |
Caldesia is a genus of aquatic plants. It includes four living species distributed in the Old World tropics. The genus "has an extensive Oligocene through Pleistocene fossil record in Eurasia,"[1] 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.
[edit] 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.
[edit] References
- ^ 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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