Liparophyllum Hook.f. (6 images; © 2014 Jan Thomas Johansson)

Menyanthes L. (10 images; © 2014 Jan Thomas Johansson)

Nymphoides Ség. (11 images; © 2014 Jan Thomas Johansson)

Ornduffia Tippery & Les (8 images; © 2014 Jan Thomas Johansson)

Villarsia J.F.Gmel. (8 images; © 2014 Jan Thomas Johansson)