Myriophyllidae

Taxonomy
In the Apg3 classification the Haloragaceae are included in Saxifragales.
In the Plant theory Haloragaceae is split off from Saxifragales and placed before them, in its own Order, Subclass and Class. Many of the Haloragaceae are aquatics, which points to the Hydrogen series quality.
Thus Haloragidae is the first Subclass of the Class Malvanae, before the second Subclass Saxifragidae. Haloragidae have one Order, Haloragales and one Family Haloragaceae.