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Nymphaea conardii
Species of water lily From Wikipedia, the free encyclopedia
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Nymphaea conardii is a species of waterlily native to the region spanning from Southern Mexico to tropical South America.[1]
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Description
Vegetative characteristics
Nymphaea conardii is an aquatic herb[2] with ovoid, 4.5 cm wide rhizomes.[3] The ovate-elliptical leaf blade is uniformly green,[4] and it can reach up to 18 cm in length and 14 cm in width.[5] The leaf venation is reticulate and dichotomous, with 9-15 primary veins.[3] The leaf blade is attached to glabrous, max. 4 mm wide petioles with 2-4 primary and 4-6 secondary air canals.[5]
Generative characteristics
The nocturnal flowers float on the water surface.[2] The flowers have glabrous, non-brittle green peduncles with 5-6 primary, central air canals and 10-12 secondary, smaller, peripheral canals.[4] The flowers have uniformly green, 3-6 cm long and 1-3 cm wide, oblong-ovate sepals with an slightly rounded or acute apex.[5] The fruits are 1.5-1.7 cm long and 2.5-2.9 cm wide.[4] The granulose, pilose, ellipsoid seeds have trichomes arranged in interrupted, longitudinal lines.[2] The trichomes are 10–60 μm long.[6]
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Cytology
The diploid chromosome count is 2n = 28.[5]
Reproduction
Vegetative reproduction
It is stoloniferous, but only in a brief period in which the tubers resume growth.[7] Proliferating pseudanthia are absent.[2][5]
Generative reproduction
Autogamy is possible, as the stigma retains its female function in the second day, when the pollen is released, thus enabling self-fertilization.[8] The seed dispersal is hydrochorous (i.e. water-dispersed) or ornithochorous (i.e. bird-dispersed).[9]
Taxonomy
Publication
It was first described by Wiersema in 1984.[1]
Type specimen
The type specimen was collected on the 29th of August 1981 by J.H. Wiersema and A. Gonzalez from a pond in the Sosa Municipality of Barinas, Venezuela.[10][5]
Placement within Nymphaea
It is placed in Nymphaea subg. Hydrocallis.[6][7] It is closely related to Nymphaea gardneriana, Nymphaea glandulifera, and Nymphaea jamesoniana.[11]
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Etymology
The specific epithet conardii honours the botanist Henry Shoemaker Conard (1874 - 1971).[7]
Conservation
Nymphaea conardii is considered to be vulnerable (VU) in Cuba.[12]
Ecology
Habitat
It inhabits flooded savannas, shallow lagoons, and Morichales associated with still water (i.e. wetlands characterized by the presence of the moriche palm Mauritia flexuosa) at elevations of 0-200 m above sea level.[9] It is also found in ponds and temporary ditches.[5]
Pollination
It is pollinated by beetles.[9]
References
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