The McKee informative placard divides the Genus Nymphaea into “Hardy” and “Tropical” waterlilies. “Hardy” being plants native to temperate climates, such as New York State. I do not have photos of these from McKee. Nor are there examples of Lotus.
What I have is an abundance of the “tropical” varieties.
“The family Nymphaeaceae, of which the genus Nymphaea is a part, is thought to be the most basic of all the Angiosperms. A minute flower of the Nymphaea type was found in early Cretaceous deposits in Portugal, dating early waterlilies to at least 115-125 million years ago.“
“Angiosperm,” the word referring to all flowering plants, is composed to two greek words angio-. meaning enclosed, and -sperm, meaning seed. “DNA studies indicate the Nymphaeaceae separated from the rest of the angiosperm family tree…..before the separation of the monocots and dicots.” – see reference.
Click me for wonderful sculpture at McKee Gardens
Reference: The Botanical Garden, Volume II, by Roger Phillips and Martyn Rix, Firefly Books, pp 382-383
Michael Stephen Wills Photography 
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