"A new species of waterlily, Nymphaea minuta, is described from Madagascar. It is closely related to N. stellata Willd. but displays a characteristic combination of morphological characters and two growth forms inits life history. The undersurfaces of the leaves are muddy-gray to brownish-violet in color, a unique feature of the taxon.
Nymphaea minuta innature is a dwarf with small, submerged, cleistogamous flowers. In cultivation, it exhibits two distinct growth forms: a submerged form and an emergent form with floating leaves and larger, emergent, chasmogamous flowers."
The unusual Australian plant Ondinea purpurae which looks like an Aponogeton but has a purple flower similar to Barclaya longifolia was found in 2009 to be, surprisingly, a relic species of Nymphaea and became Nymphaea ondinea.
 "The Red Wasterlilies of Claude Monet—Their Origin and their Avenue to Giverny."
Water Garden Journal. Fall 2004, Vol. 19 Issue 3, p5-10. 6p Abstract: Provides information on red water lilies. Classification and characteristics of water lilies; Discovery of the red water lilies in the Lake Fagertärn, located in the Sweden; Mutation of red water lilies from white water lilies;