Nymphaea ampla

(Salisbury) de Candolle

Syst. Nat. 2: 54. 1821.

Basionym: Castalia ampla Salisbury Ann. Bot. (König & Sims) 2: 73. 1805
Treatment appears in FNA Volume 3.

Rhizomes unbranched, erect, ovoid; stolons absent. Leaves: petiole glabrous. Leaf-blade abaxially purple, often spotted, adaxially green, ovate to nearly orbiculate, 15-45 × 15-45 cm, margins dentate to spinose-dentate; venation radiate and prominent centrally, without weblike pattern, principal veins 13-29; surfaces glabrous. Flowers emersed, 7-18 cm diam., opening and closing diurnally, only sepals and outermost petals in distinct whorls of 4; sepals green, abaxially flecked with short dark streaks, faintly veined, lines of insertion on receptacle not prominent; petals 12-21, white; stamens 50-190, yellow, outer with connective appendage projecting 3-10 mm beyond anther; filaments widest at or below middle, mostly equal to or shorter than anthers; pistil 14-25-locular, appendages at margin of stigmatic disk short-triangular, to 3 mm. Seeds nearly globose to ellipsoid, 1.2-1.6 × 0.9-1.3 mm, 1.2-1.5 times as long as broad, with longitudinal rows of hairlike papillae 40-180 µm.


Phenology: Flowering all year.
Habitat: Ditches, canals, ponds, and freshwater tidal margins
Elevation: 0-350 m

Distribution

V3 129-distribution-map.gif

Fla., Tex., Mexico, West Indies, Central America, South America

Discussion

Reports of Nymphaea ampla in southern Texas by H. S. Conard (1905) are confirmed by specimens although no recent collections have been seen.

Selected References

None.

Lower Taxa

None.
... more about "Nymphaea ampla"
John. H. Wiersema +  and C. Barre Hellquist +
(Salisbury) de Candolle +
divergent;overlapping +
Castalia ampla +
Fla. +, Tex. +, Mexico +, West Indies +, Central America +  and South America +
0-350 m +
7 cm70 mm <br />0.07 m <br /> (18 cm180 mm <br />0.18 m <br />) +
nocturnal +  and diurnal +
protogynous +  and bisexual +
dehiscent +  and indehiscent +
Ditches, canals, ponds, and freshwater tidal margins +
extra-axillary +  and axillary +
green +  and spotted +
15 cm150 mm <br />0.15 m <br /> (45 cm450 mm <br />0.45 m <br />) +
ovate;nearly orbiculate +
15cm +  and 45cm +
emersed +, submersed +  and floating +
dentate +  and spinose-dentate +
short-triangular +
entire to spinose-dentate +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
cream-colored +  and yellow +
transitional +
whorled +, or +  and arranged +
12 +  and 21 +
ovate;obovate +
Flowering all year. +
3-35-carpellate +
tuberous-thickened +
adventitious +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
1.2-1.5 times as long as broad +
several;numerous +
nearly globose +  and ellipsoid +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
flecked +  and green +
distinct +
ovate;elliptic +
elongate +
Castalia +
Nymphaea ampla +
Nymphaea +
species +
distinct +