Magnolianae is the second Class of the Angiospermae. It is not treated as such in the Apg3 classification. It consists of all the “primitive” Angiospermae, with the exception of the Amborellales. Put otherwise, it consists of all Angiospermae except the Monocots and Eudicots.
The Magnolianae are polyphyletic. This is common in the earlier diverging lineages, as the later development evolved out of them, but is not included in Magnolianae. Magnolianae have a lot in common, especially that they are not far developed.
The Magnolianae have the themes of the Hydrogen and Carbon series combined. In the Nymphaeidae the emphasis is on the Hydrogen series. In the Magnoliidae the emphasis is on the Carbon series.