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Nymphaea × thiona
Nymphaea × thiona is a species of waterlily native to the US-American states Alabama, Florida, and Georgia. Additionally, it has been introduced to Costa Rica, as well as the US-American states Kentucky, and Nevada. It is a natural hybrid of Nymphaea mexicana and Nymphaea odorata.[1] DescriptionParent species of the natural hybrid Nymphaea × thiona D.B.Ward  Nymphaea mexicana Zucc. .jpg) Nymphaea odorata Aiton Vegetative characteristicsIt exhibits more vigorous growth than its parent species.[2] Generative characteristicsThe flowers extend above the water surface.[3] The flowers are larger than flowers of Nymphaea mexicana, and more yellow than Nymphaea odorata flowers. Fruits are unknown.[4] ReproductionGenerative reproductionIt is a sterile hybrid. Fruits have never been observed.[4][3] TaxonomyPublicationIt was first described by Daniel Bertram Ward in 1977.[1] Type specimenType specimen was collected by C. Hoy in drainage canals of marshes in St. Marks National Wildlife Refuge, in Wakulla County, Florida, USA on the 15th of April 1962.[4][5] EtymologyThe specific epithet thiona expresses an association to the name Sulphur Waterlily.[4] EcologyHabitatIt exists only in areas of sympatric occurrence of the two parent species.[4] CultivationIt is also known from artificial, horticultural hybridisation.[4][3] References
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